I'd installed your plugin with double-click, no problem, it appears in options.
I did 2 tries :
1. with a new project, I built 5 Walls for 2 rooms, after I choose the option… Watch the result (?) :
The plugin is 'grey', Why ? [:((]
2. with an existing project,
The option is NOT 'grey' but by clicking on it there is no result ! [:(]
Watch the options of my PC for SH3D.
@Manu : I try to create a log file but the file is empty !
NB : I say that I use many other plugins (see the list) which are OK, why not these two ?
[:-&]
.