A quick test result in this:
Great plane of home - realy.1. The v-0.4 reduce the delay from 30" to 19"
I try reduce them more (look next version)2. In tree view the furniture completely disappear with plugin activated.
Fixed3.1 I suggest again to split in to different plugins and focus at this moment only on Grouper
Sorry for this, but.. not.Because i write this plugin only in my free time, and i have no time to observe many version with many build for separated plugins, and, in future, i believe - builds and versions will be some more..
I propose some principles for testers.
It's too seriously way to test my small project. It's must not take so many payloads.Here I've made on completion of my previous post, this:
forget SH3D clean, simple drawing without my plugin 
And at last: v.0.5
