user: Describe U from the Blender manual or Python API, including usage steps and snippets.

assistant: Editor attribute)](bpy.types.SpaceSequenceEditor.html#bpy.types.SpaceSequenceEditor.use_proxies) - [use_proximity_project (bpy.types.DynamicPaintBrushSettings attribute)](bpy.types.DynamicPaintBrushSettings.html#bpy.types.DynamicPaintBrushSettings.use_proximity_project) - [use_proximity_ramp_alpha (bpy.types.DynamicPaintBrushSettings attribute)](bpy.types.DynamicPaintBrushSettings.html#bpy.types.DynamicPaintBrushSettings.use_proximity_ramp_alpha) - [use_proxy (bpy.types.EffectStrip attribute)](bpy.types.EffectStrip.html#bpy.types.EffectStrip.use_proxy)   - [(bpy.types.ImageStrip attribute)](bpy.types.ImageStrip.html#bpy.types.ImageStrip.use_proxy)   - [(bpy.types.MetaStrip attribute)](bpy.types.MetaStrip.html#bpy.types.MetaStrip.use_proxy)   - [(bpy.types.MovieClip attribute)](bpy.types.MovieClip.html#bpy.types.MovieClip.use_proxy)   - [(bpy.types.MovieStrip attribute)](bpy.types.MovieStrip.html#bpy.types.MovieStrip.use_proxy)   - [(bpy.types.SceneStrip attribute)](bpy.types.SceneStrip.html#bpy.types.SceneStrip.use_proxy) - [use_proxy_custom_directory (bpy.types.MovieClip attribute)](bpy.types.MovieClip.html#bpy.types.MovieClip.use_proxy_custom_directory)   - [(bpy.types.StripProxy attribute)](bpy.types.StripProxy.html#bpy.types.StripProxy.use_proxy_custom_directory) - [use_proxy_custom_file (bpy.types.StripProxy attribute)](bpy.types.StripProxy.html#bpy.types.StripProxy.use_proxy_custom_file) - [use_puff_volume (bpy.types.ParticleBrush attribute)](bpy.types.ParticleBrush.html#bpy.types.ParticleBrush.use_puff_volume) - [use_pure_random (bpy.types.LineStyleGeometryModifier_SpatialNoise attribute)](bpy.types.LineStyleGeometryModifier_SpatialNoise.html#bpy.types.LineStyleGeometryModifier_SpatialNoise.use_pure_random) - [use_quality_normals (bpy.types.SolidifyModifier attribute)](bpy.types.SolidifyModifier.html#bpy.types.SolidifyModifier.use_quality_normals) - [use_radial_max (bpy.types.FieldSettings attribute)](bpy.types.FieldSettings.html#bpy.types.FieldSettings.use_radial_max) - [use_radial_min (bpy.types.FieldSettings attribute)](bpy.types.FieldSettings.html#bpy.types.FieldSettings.use_radial_min) - [use_radius (bpy.types.Curve attribute)](bpy.types.Curve.html#bpy.types.Curve.use_radius) - [use_radius_as_size (bpy.types.CastModifier attribute)](bpy.types.CastModifier.html#bpy.types.CastModifier.use_radius_as_size) - [use_radius_interpolate (bpy.types.BrushCurvesSculptSettings attribute)](bpy.types.BrushCurvesSculptSettings.html#bpy.types.BrushCurvesSculptSettings.use_radius_interpolate) - [use_rake (bpy.types.BrushTextureSlot attribute)](bpy.types.BrushTextureSlot.html#bpy.types.BrushTextureSlot.use_rake) - [use_ramp (bpy.types.LineStyleColorModifier_Material attribute)](bpy.types.LineStyleColorModifier_Material.html#bpy.types.LineStyleColorModifier_Material.use_ramp) - [use_random (bpy.types.BrushTextureSlot attribute)](bpy.types.BrushTextureSlot.html#bpy.types.BrushTextureSlot.use_random)   - [(bpy.types.GreasePencilLengthModifier attribute)](bpy.types.GreasePencilLengthModifier.html#bpy.types.GreasePencilLengthModifier.use_random)   - [(bpy.types.GreasePencilNoiseModifier attribute)](bpy.types.GreasePencilNoiseModifier.html#bpy.types.GreasePencilNoiseModifier.use_random) - [use_random_order (bpy.types.BuildModifier attribute)](bpy.types.BuildModifier.html#bpy.types.BuildModifier.use_random_order) - [use_random_press_hue (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_random_press_hue)   - [(bpy.types.BrushGpencilSettings attribute)](bpy.types.BrushGpencilSettings.html#bpy.types.BrushGpencilSettings.use_random_press_hue)   - [(bpy.types.UnifiedPaintSettings attribute)](bpy.types.UnifiedPaintSettings.html#bpy.types.UnifiedPaintSettings.use_random_press_hue) - [use_random_press_radius (bpy.types.BrushGpencilSettings attribute)](bpy.types.BrushGpencilSettings.html#bpy.types.BrushGpencilSettings.use_random_press_radius) - [use_random_press_sat (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_random_press_sat)   - [(bpy.types.BrushGpencilSettings attribute)](bpy.types.BrushGpencilSettings.html#bpy.types.BrushGpencilSettings.use_random_press_sat)   - [(bpy.types.UnifiedPaintSettings attribute)](bpy.types.UnifiedPaintSettings.html#bpy.types.UnifiedPaintSettings.use_random_press_sat) - [use_random_press_strength (bpy.types.BrushGpencilSettings attribute)](bpy.types.BrushGpencilSettings.html#bpy.types.BrushGpencilSettings.use_random_press_strength) - [use_random_press_uv (bpy.types.BrushGpencilSettings attribute)](bpy.types.BrushGpencilSettings.html#bpy.types.BrushGpencilSettings.use_random_press_uv) - [use_random_press_val (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_random_press_val)   - [(bpy.types.BrushGpencilSettings attribute)](bpy.types.BrushGpencilSettings.html#bpy.types.BrushGpencilSettings.use_random_press_val)   - [(bpy.types.UnifiedPaintSettings attribute)](bpy.types.UnifiedPaintSettings.html#bpy.types.UnifiedPaintSettings.use_random_press_val) - [use_raytrace_refraction (bpy.types.Material attribute)](bpy.types.Material.html#bpy.types.Material.use_raytrace_refraction) - [use_raytracing (bpy.types.SceneEEVEE attribute)](bpy.types.SceneEEVEE.html#bpy.types.SceneEEVEE.use_raytracing) - [use_react_multiple (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_react_multiple) - [use_react_start_end (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_react_start_end) - [use_realtime_update (bpy.types.SpaceDopeSheetEditor attribute)](bpy.types.SpaceDopeSheetEditor.html#bpy.types.SpaceDopeSheetEditor.use_realtime_update)   - [(bpy.types.SpaceGraphEditor attribute)](bpy.types.SpaceGraphEditor.html#bpy.types.SpaceGraphEditor.use_realtime_update)   - [(bpy.types.SpaceImageEditor attribute)](bpy.types.SpaceImageEditor.html#bpy.types.SpaceImageEditor.use_realtime_update)   - [(bpy.types.SpaceNLA attribute)](bpy.types.SpaceNLA.html#bpy.types.SpaceNLA.use_realtime_update) - [use_recent_searches (bpy.types.Preferences attribute)](bpy.types.Preferences.html#bpy.types.Preferences.use_recent_searches) - [use_recompute_usercount_on_save_debug (bpy.types.PreferencesExperimental attribute)](bpy.types.PreferencesExperimental.html#bpy.types.PreferencesExperimental.use_recompute_usercount_on_save_debug) - [use_record_with_nla (bpy.types.ToolSettings attribute)](bpy.types.ToolSettings.html#bpy.types.ToolSettings.use_record_with_nla) - [use_red_channel (bpy.types.MovieTrackingTrack attribute)](bpy.types.MovieTrackingTrack.html#bpy.types.MovieTrackingTrack.use_red_channel) - [use_reduce_motion (bpy.types.PreferencesView attribute)](bpy.types.PreferencesView.html#bpy.types.PreferencesView.use_reduce_motion) - [use_region_overlap (bpy.types.PreferencesSystem attribute)](bpy.types.PreferencesSystem.html#bpy.types.PreferencesSystem.use_region_overlap) - [use_regrow_hair (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_regrow_hair) - [use_relative (bpy.types.Key attribute)](bpy.types.Key.html#bpy.types.Key.use_relative) - [use_relative_location (bpy.types.PivotConstraint attribute)](bpy.types.PivotConstraint.html#bpy.types.PivotConstraint.use_relative_location) - [use_relative_offset (bpy.types.ArrayModifier attribute)](bpy.types.ArrayModifier.html#bpy.types.ArrayModifier.use_relative_offset)   - [(bpy.types.GreasePencilArrayModifier attribute)](bpy.types.GreasePencilArrayModifier.html#bpy.types.GreasePencilArrayModifier.use_relative_offset)   - [(bpy.types.WireframeModifier attribute)](bpy.types.WireframeModifier.html#bpy.types.WireframeModifier.use_relative_offset) - [use_relative_parent (bpy.types.Bone attribute)](bpy.types.Bone.html#bpy.types.Bone.use_relative_parent)   - [(bpy.types.EditBone attribute)](bpy.types.EditBone.html#bpy.types.EditBone.use_relative_parent) - [use_relative_path (bpy.types.UserAssetLibrary attribute)](bpy.types.UserAssetLibrary.html#bpy.types.UserAssetLibrary.use_relative_path) - [use_relative_paths (bpy.types.PreferencesFilePaths attribute)](bpy.types.PreferencesFilePaths.html#bpy.types.PreferencesFilePaths.use_relative_paths) - [use_remesh_fix_poles (bpy.types.Mesh attribute)](bpy.types.Mesh.html#bpy.types.Mesh.use_remesh_fix_poles) - [use_remesh_preserve_attributes (bpy.types.Mesh attribute)](bpy.types.Mesh.html#bpy.types.Mesh.use_remesh_preserve_attributes) - [use_remesh_preserve_volume (bpy.types.Mesh attribute)](bpy.types.Mesh.html#bpy.types.Mesh.use_remesh_preserve_volume) - [use_remote_url (bpy.types.UserExtensionRepo attribute)](bpy.types.UserExtensionRepo.html#bpy.types.UserExtensionRepo.use_remote_url) - [use_remove (bpy.types.VertexWeightEditModifier attribute)](bpy.types.VertexWeightEditModifier.html#bpy.types.VertexWeightEditModifier.use_remove) - [use_remove_disconnected (bpy.types.RemeshModifier attribute)](bpy.types.RemeshModifier.html#bpy.types.RemeshModifier.use_remove_disconnected) - [use_render_adaptive (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_render_adaptive) - [use_render_border (bpy.types.SpaceView3D attribute)](bpy.types.SpaceView3D.html#bpy.types.SpaceView3D.use_render_border) - [use_render_cache (bpy.types.RenderSettings attribute)](bpy.types.RenderSettings.html#bpy.types.RenderSettings.use_render_cache) - [use_render_undistorted (bpy.types.MovieClipUser attribute)](bpy.types.MovieClipUser.html#bpy.types.MovieClipUser.use_render_undistorted) - [use_replace (bpy.types.WireframeModifier attribute)](bpy.types.WireframeModifier.html#bpy.types.WireframeModifier.use_replace) - [use_restore_mesh (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_restore_mesh) - [use_restrict_frame_range (bpy.types.GreasePencilBuildModifier attribute)](bpy.types.GreasePencilBuildModifier.html#bpy.types.GreasePencilBuildModifier.use_restrict_frame_range) - [use_restricted_range (bpy.types.FModifier attribute)](bpy.types.FModifier.html#bpy.types.FModifier.use_restricted_range) - [use_reverse (bpy.types.BuildModifier attribute)](bpy.types.BuildModifier.html#bpy.types.BuildModifier.use_reverse)   - [(bpy.types.NlaStrip attribute)](bpy.types.NlaStrip.html#bpy.types.NlaStrip.use_reverse) - [use_reverse_frames (bpy.types.EffectStrip attribute)](bpy.types.EffectStrip.html#bpy.types.EffectStrip.use_reverse_frames)   - [(bpy.types.ImageStrip attribute)](bpy.types.ImageStrip.html#bpy.types.ImageStrip.use_reverse_frames)   - [(bpy.types.MaskStrip attribute)](bpy.types.MaskStrip.html#bpy.types.MaskStrip.use_reverse_frames)   - [(bpy.types.MetaStrip attribute)](bpy.types.MetaStrip.html#bpy.types.MetaStrip.use_reverse_frames)   - [(bpy.types.MovieClipStrip attribute)](bpy.types.MovieClipStrip.html#bpy.types.MovieClipStrip.use_reverse_frames)   - [(bpy.types.MovieStrip attribute)](bpy.types.MovieStrip.html#bpy.types.MovieStrip.use_reverse_frames)   - [(bpy.types.SceneStrip attribute)](bpy.types.SceneStrip.html#bpy.types.SceneStrip.use_reverse_frames) - [use_ridges_and_valleys (bpy.types.FreestyleSettings attribute)](bpy.types.FreestyleSettings.html#bpy.types.FreestyleSettings.use_ridges_and_valleys) - [use_rim (bpy.types.SolidifyModifier attribute)](bpy.types.SolidifyModifier.html#bpy.types.SolidifyModifier.use_rim) - [use_rim_only (bpy.types.SolidifyModifier attribute)](bpy.types.SolidifyModifier.html#bpy.types.SolidifyModifier.use_rim_only) - [use_root (bpy.types.MeshSkinVertex attribute)](bpy.types.MeshSkinVertex.html#bpy.types.MeshSkinVertex.use_root) - [use_root_coords (bpy.types.FieldSettings attribute)](bpy.types.FieldSettings.html#bpy.types.FieldSettings.use_root_coords) - [use_rotate_around_active (bpy.types.PreferencesInput attribute)](bpy.types.PreferencesInput.html#bpy.types.PreferencesInput.use_rotate_around_active) - [use_rotation (bpy.types.FloorConstraint attribute)](bpy.types.FloorConstraint.html#bpy.types.FloorConstraint.use_rotation)   - [(bpy.types.KinematicConstraint attribute)](bpy.types.KinematicConstraint.html#bpy.types.KinematicConstraint.use_rotation) - [use_rotation_instance (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_rotation_instance) - [use_rotation_x (bpy.types.ChildOfConstraint attribute)](bpy.types.ChildOfConstraint.html#bpy.types.ChildOfConstraint.use_rotation_x)   - [(bpy.types.GeometryNodeGizmoTransform attribute)](bpy.types.GeometryNodeGizmoTransform.html#bpy.types.GeometryNodeGizmoTransform.use_rotation_x) - [use_rotation_y (bpy.types.ChildOfConstraint attribute)](bpy.types.ChildOfConstraint.html#bpy.types.ChildOfConstraint.use_rotation_y)   - [(bpy.types.GeometryNodeGizmoTransform attribute)](bpy.types.GeometryNodeGizmoTransform.html#bpy.types.GeometryNodeGizmoTransform.use_rotation_y) - [use_rotation_z (bpy.types.ChildOfConstraint attribute)](bpy.types.ChildOfConstraint.html#bpy.types.ChildOfConstraint.use_rotation_z)   - [(bpy.types.GeometryNodeGizmoTransform attribute)](bpy.types.GeometryNodeGizmoTransform.html#bpy.types.GeometryNodeGizmoTransform.use_rotation_z) - [use_rotations (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_rotations) - [use_roughness_curve (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_roughness_curve) - [use_same_object (bpy.types.FreestyleLineStyle attribute)](bpy.types.FreestyleLineStyle.html#bpy.types.FreestyleLineStyle.use_same_object) - [use_sample_even_lengths (bpy.types.CurveProfile attribute)](bpy.types.CurveProfile.html#bpy.types.CurveProfile.use_sample_even_lengths) - [use_sample_straight_edges (bpy.types.CurveProfile attribute)](bpy.types.CurveProfile.html#bpy.types.CurveProfile.use_sample_straight_edges) - [use_save_prompt (bpy.types.PreferencesView attribute)](bpy.types.PreferencesView.html#bpy.types.PreferencesView.use_save_prompt) - [use_scale_easing (bpy.types.Bone attribute)](bpy.types.Bone.html#bpy.types.Bone.use_scale_easing)   - [(bpy.types.EditBone attribute)](bpy.types.EditBone.html#bpy.types.EditBone.use_scale_easing) - [use_scale_instance (bpy.types.ParticleSettings attribute)](bpy.types.ParticleSettings.html#bpy.types.ParticleSettings.use_scale_instance) - [use_scale_stiffness (bpy.types.MetaElement attribute)](bpy.types.MetaElement.html#bpy.types.MetaElement.use_scale_stiffness) - [use_scale_thickness (bpy.types.GPencilSculptSettings attribute)](bpy.types.GPencilSculptSettings.html#bpy.types.GPencilSculptSettings.use_scale_thickness) - [use_scale_x (bpy.types.ChildOfConstraint attribute)](bpy.types.ChildOfConstraint.html#bpy.types.ChildOfConstraint.use_scale_x)   - [(bpy.types.GeometryNodeGizmoTransform attribute)](bpy.types.GeometryNodeGizmoTransform.html#bpy.types.GeometryNodeGizmoTransform.use_scale_x) - [use_scale_y (bpy.types.ChildOfConstraint attribute)](bpy.types.ChildOfConstraint.html#bpy.types.ChildOfConstraint.use_scale_y)   - [(bpy.types.GeometryNodeGizmoTransform attribute)](bpy.types.GeometryNodeGizmoTransform.html#bpy.types.GeometryNodeGizmoTransform.use_scale_y) - [use_scale_z (bpy.types.ChildOfConstraint attribute)](bpy.types.ChildOfConstraint.html#bpy.types.ChildOfConstraint.use_scale_z)   - [(bpy.types.GeometryNodeGizmoTransform attribute)](bpy.types.GeometryNodeGizmoTransform.html#bpy.types.GeometryNodeGizmoTransform.use_scale_z) - [use_scene_lights (bpy.types.View3DShading attribute)](bpy.types.View3DShading.html#bpy.types.View3DShading.use_scene_lights) - [use_scene_lights_render (bpy.types.View3DShading attribute)](bpy.types.View3DShading.html#bpy.types.View3DShading.use_scene_lights_render) - [use_scene_spacing (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_scene_spacing) - [use_scene_time_sync (bpy.types.WorkSpace attribute)](bpy.types.WorkSpace.html#bpy.types.WorkSpace.use_scene_time_sync) - [use_scene_world (bpy.types.View3DShading attribute)](bpy.types.View3DShading.html#bpy.types.View3DShading.use_scene_world) - [use_scene_world_render (bpy.types.View3DShading attribute)](bpy.types.View3DShading.html#bpy.types.View3DShading.use_scene_world_render) - [use_screen_refraction (bpy.types.Material attribute)](bpy.types.Material.html#bpy.types.Material.use_screen_refraction) - [use_scripts_auto_execute (bpy.types.PreferencesFilePaths attribute)](bpy.types.PreferencesFilePaths.html#bpy.types.PreferencesFilePaths.use_scripts_auto_execute) - [use_sculpt_base_mesh (bpy.types.MultiresModifier attribute)](bpy.types.MultiresModifier.html#bpy.types.MultiresModifier.use_sculpt_base_mesh) - [use_sculpt_collision (bpy.types.Curves attribute)](bpy.types.Curves.html#bpy.types.Curves.use_sculpt_collision) - [use_sculpt_delay_updates (bpy.types.Paint attribute)](bpy.types.Paint.html#bpy.types.Paint.use_sculpt_delay_updates) - [use_sculpt_texture_paint (bpy.types.PreferencesExperimental attribute)](bpy.types.PreferencesExperimental.html#bpy.types.PreferencesExperimental.use_sculpt_texture_paint) - [use_seam (bpy.types.MeshEdge attribute)](bpy.types.MeshEdge.html#bpy.types.MeshEdge.use_seam) - [use_secondary_overlay (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_secondary_overlay) - [use_secondary_overlay_override (bpy.types.Brush attribute)](bpy.types.Brush.html#bpy.types.Brush.use_secondary_overlay_override) - [use_select_background (bpy.types.Gizmo attribute)](bpy.types.Gizmo.html#bpy.types.Gizmo.use_select_background) - [use_selected_to_active (bpy.types.BakeSettings attribute)](bpy.types.BakeSettings.html#bpy.types.BakeSettings.use_selected_to_active) - [use_self (bpy.types.BooleanModifier attribute)](bpy.types.BooleanModifier.html#bpy.types.BooleanModifier.use_self)   - [(bpy.types.Driver attribute)](bpy.types.Driver.html#bpy.types.Driver.use_self) - [use_self_collision (bpy.types.ClothCollisionSettings attribute)](bpy.types.ClothCollisionSettings.html#bpy.types.ClothCollisionSettings.use_self_collision)   - [(bpy.types.SoftBodySettings attribute)](bpy.typ