Select All is a one click function that selects all visible objects in the drawing, or the whole image. This is useful to resize or reshape the entire drawing.
The block can be moved, scaled, mirrored horizontally and vertically and rotated. The block can be copied or cut to the clipboard and then pasted to the same or another drawing. The block can also be deleted.
Shortcuts
Draw Tab, Select; Paint Tab, Select:
Keys: Ctrl + A; Alt, D, SA; Alt, P, SA