Tnx tak2hata , it is working fine now. My mistake was that I had both of the items, the wall and the circle made as components, not only the wall, in my case.

Daiku, I've got a question and maybe a challenge for you

I am looking for a similar script that would be able to change the names for a group of components, but the definition name and not the name, and what is most important to be able to set the order (SU does not accept two components with the same name, so the script might do it in an certain order...let's say you've got 100 components, and the script will name them component#1 ... component#2...an so on).

Thanks.

For some reason this plugin is not working with my SU v8. I've installed latest version of bst and hos 1.6.1. Even so, when I activate the plugin, then the tool and then I go for the wall, this is simple selected in blue color (not orange as I've seen on tutorial) and doesn't let me to select the circle, that would make the hole.
Any suggestion?
Thank you.