Leader line of dimension

 

You create it simply by dragging the dimensio text to where you want it and then enable the property "Leader line visibility" to ON in the vertex editor. Unfortunately you can do this in the 3.1 versions only, not in the 2.1 series.

Thanks! It'll be very usefully, but now...

...now, if you really need it, you can draw two STRA elements to reproduce the leader line.
;-)