You can then add additional themes such as grids or images which are based on that projection. Note, however, that a View cannot reconcile themes in different projections. The Theme menu manages one or more active themes. Active themes are indicated by indicated by a raised entry in the View's theme list. ArcView makes heavy use of buttons and tools, so you should try to get familiar with them.
Most buttons replicate frequently-used menu choices.
Many tools access capabilities that don't appear in ArcView's menus at all. For example, ArcView's drawing tools, feature edit and Layout composition tools aren't replicated in the menu. Tools are more interactive than buttons. For example, you can zoom in via either button or tool , but they work differently. Clicking the Zoom button simply zooms the view by a predefined amount.