user: How do I use Select Menu in Blender? Include parameters, examples, warnings and best practices.

assistant: ### All

Select all selectable objects.

### None

Deselect all objects, but the active object stays the same.

### Invert

Toggle the selection state of all visible objects.

### Box Select

Interactive [box selection](../../interface/selecting.html#tool-select-box).

### Circle Select

Interactive [circle selection](../../interface/selecting.html#tool-select-circle).

### Lasso Select

See [Select Lasso](../../interface/selecting.html#tool-select-lasso).

### Select Active Camera

Selects the active camera, this is especially handy in complex scene.

### Select Mirror

Select the Mirror objects of the selected object,
based on their names, e.g. “sword.L” and “sword.R”.

### Select Random

Randomly selects unselected objects based on percentage probability.
The percentage can be modified in the *Adjust Last Operation* panel.
It is important to note that the percentage is the likelihood of
an unselected object being selected and not the percentage amount of objects
that will be selected.

### Select More/Less

Their purpose, based on the hierarchical.

More
:   Expand the selection to the immediate parent and children of the selected objects.

Less
:   Contrast the selection, deselect objects at the boundaries of parent/child relationships.

Parent
:   Deselects the currently selected objects and selects their immediate parents.

Child
:   Deselects the currently selected objects and selects their immediate children.

Extend Parent
:   Extends the selection to the immediate parents of the currently selected objects.

Extend Child
:   Extends the selection to the immediate children of the currently selected objects.

### Select All by Type

With this tool, it becomes possible to select objects of a certain type in one go.
For a description of all object types see [Object Types](types.html).

### Select Grouped

There are two ways to organize the objects in relation to one another.
The first one is *parenting*, and the second is simple *grouping*.
These relationships to an artist’s advantage by selecting members of respective families or groups.
*Select Grouped* uses the active object as a basis to select all others.

Children
:   Selects all hierarchical descendants of the active object.

Immediate Children
:   Selects all direct children of the active object.

Parent
:   Selects the parent of this object if it has one.

Siblings
:   Select objects that have the same parent as the active object.
    This can also be used to select all root level objects (objects with no parents).

Type
:   Select objects that are the same type as the active one.

Collection
:   Select all objects that are in the same collection as the active one.
    If the active object belongs to more than one collection,
    a list will pop up so that you can choose which collection to select.

Object Hooks
:   Every hook that belongs to the active object.

Pass
:   Select objects assigned to the same [Render Pass](../../render/layers/passes.html).

Color
:   Select objects with same [Object Color](properties/display.html#bpy-types-object-color).

Keying Set
:   Select objects included in the active [Keying Set](../../animation/keyframes/keying_sets.html).

Light Type
:   Select matching light types.

### Select Linked

Selects all objects which share a common data-block with the active object.
*Select Linked* uses the active object as a basis to select all others.

Object Data
:   Selects every object that is linked to the same Object Data, i.e.
    the data-block that specifies the type (mesh, curve, etc.) and the build
    (constitutive elements like vertices, control vertices, and where they are in space) of the object.

Material
:   Selects every object that is linked to the same material data-block.

Instanced Collection
:   Select every object that is linked to the instanced collection.

Texture
:   Selects every object that is linked to the same texture data-block.

Particle System
:   Selects all objects that use the same *Particle System*.

Library
:   Selects all objects that are in the same [Library](../../files/linked_libraries/index.html).

Library (Object Data)
:   Selects all objects that are in the same [Library](../../files/linked_libraries/index.html)
    and limited to *Object Data*.

### Select Pattern

Selects all elements whose name matches a given pattern.
Supported wild-cards: `*` matches everything, `?` matches any single character,
`[abc]` matches characters in `abc`, and `[!abc]` match any character not in `abc`.
As an example `*house*` matches any name that contains `house`,
while `floor*` matches any name starting with `floor`.

Case Sensitive
:   The matching can be chosen to be case sensitive or not.

Extend
:   When *Extend* checkbox is checked the selection is extended instead of generating a new one.