Smart modify all walls function

[gcalavaro]

I made a complex project with walls wide 30 cm. Now I need to modify with walls wide 20 cm. Yet, selecting and changing the wide property doesn't work as the wall is positioned at the center of the wide size (15 cm from each side) while I would like to move so that the external side of wall is the same as the old one.
In other words, I need that the wall will also move 5 cm on one direction that toward the external side of the building.
Is there a function that will automate such task?
Thanks for your attention.
Best regards,
Giuseppe

[okh]

If I understand correctly, AdvancedEditing.sh3p found linked on the plugin page can help, even if you still need to move walls in groups depending which way they need to be moved. ok

[alaX]

I don't know how complex is your project but you could try this:

[gcalavaro]

Thanks.
This worked. My project was kind of complex and could not do with the whole floor but it helped make it by room, speeding up the work.

Thanks very much alaX.
Peppe