Gets the AN at the position of the command cursor.
If this function is called from within a larger piece of code, the cursor may have moved away from where it was originally positioned when the larger piece of code was started.
If you are using groups, and there are currently two command cursors, the AN for the innermost will be returned. For example, if there is a cursor for a group as well as a cursor for one of its objects, the AN for the object will be returned.
The AN at the position of the command cursor. If no cursor is visible, -1 is returned.
! If the command cursor is on AN25:
! Sets AN to 25.