Michael
>obj.setHitTest( false );
Yes! That's exactly what I needed. Thank you! :)

Mik
>it would be very useful to have two additional checkboxes (same as Unit) "prefix" and "suffix"
I've made some changes in the new version ;)

v0.6
Snapping disabled for dimension lines (now script works exacly as planned)
Added more hidden features:
Prefix can be setted by using split symbol | in the units field. Example: R|mm -> R 15.1 mm

Pilou
>>Someone ask text before the dimension, also text in replacement of the dimension! (here text is after)
Special for you. :) Add * in the beginning. Example: *3/4 de pieds d'alouette!