Defines a block and inserts it back to its original place.

When you use AutoCAD's BLOCK or WBLOCK command to define a block, all selected objects will disappear from screen. Even if you use OOPS command to bring them back, they are separate objects not the defined block itself. 

This function let you use BLOCK command to define a block and inserts it back right at its original place.

Temporarily saves a point's coordinate.

This function let you temporarily saves a reference point's coordinate for future use (see bellow's function).

code: (setq save_pt (getpoint "Get a point: "))

lisp golbal variable: save_pt

Restores previous saved coordinate of a point.

This function let you restore previous (the above function) saved coordinate of a point.

code: !save_pt

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