Auto-Dimensioning greyed-out

[Anonymous]

Can someone please tell me why my auto-dimensioning tool might be greyed-out/unavailable? The dimension layer is on.

Newbie here, I'm sure its something obvious I'm overlooking

Thanks for any help.

ArchiCAD 10 Windows XP

[Anonymous]

Try selecting everything you want to dimension first, and then going to the tool.

[Anonymous]

The obviousness of that one somehow escaped me.

Thanks Melisa