It is a proposal for general AutoCAD (not just Electrical) functionality:
Allow to enter dimension-line position ("Specify dimension line position") through direct distance entry - e.g. move cursor upwards and enter "100" to offset the dimension line 100 units up from its first base point. Existing direct distance entry uses the current (arbitrary) cursor location as the reference point.
Vladimir Michl,
www.cadstudio.cz