FROM (Command Modifier)

Locates a point offset from a reference point within a command.

Object Snap  

At a prompt to locate a point, enter FROM

Base Point:

Specify a point to use as a base point

of <offset>:

Enter a relative offset

At a prompt for locating a point, enter FROM, and then enter a temporary reference or base point from which you can specify an offset to locate the next point. Enter the offset location from this base point as a relative coordinate, or use direct distance entry.

Note: You cannot use this method during dragging in commands such as MOVE and COPY. Specifying an absolute coordinate, either by keyboard entry or with a pointing device, cancels the FROM command.