Hi Michael, the inset trick works perfectly, just simple and easy. Thank you all.

And what's great is the opposite result with a negative value in the height field. An easy way to extrude some tricky faces of a solid.

""""""""" the opposite result with a negative value in the height field"""""""""""

There is also an inwards/outwards toggle in the command.

And when you choose outwards, a different field activates called "Expand".....

Made a quick doodle with Offset.... Just dropping this here...

@ Burr Cool Subdiv modeling! ;)

For the French Tips & Tricks! ;)
https://moiscript.weebly.com/trucs-astuces.html somewhere on the page dedicaced! :)