How to change dimensions in ZW3D ?

Hey, I have a question. I draw a rectangle (1), then I make dimension on its side (2) and then I change it (3). But when I change dimension length is the same as before.

1)
http://img836.imageshack.us/img836/7249/11173964.png

2)
http://img211.imageshack.us/img211/5970/46738947.png

3)
http://img22.imageshack.us/img22/5038/71352879.png

Where is the problem?

Thanks

2 Answers

Hi, there is a setting for automatic-update of manual-update the drawing by the seventh icon of the left-top corner, please take the the following picture for reference.

Best regards
Colin

Colin, thanks, but it was something else. It started to work when I enabled "active solver for 2d constraints".

I have another question, how to draw construction line like in solidworks?