manythanks, I used miscellaneous>box and it works

ok thanks, this is the figure
https://paste.opensuse.org/pastes/1a09f8246d86
ciao

<t>Hi, my wall is made as this:<br/>
wiev by side<br/>
<br/>
roof<br/>
__________<br/>
................|beam<br/>
................|_____<br/>
........................|<br/>
........................|wall<br/>
........................|<br/>
this format seems that doesn't allow to insert spaces so don ...