GUI Graph Multiselection problem

There is this mouse multiselection feature for graphs on right-click and drag.

I noticed that, when using the VM API

• If we click into the Graph tab it allows us to do the selection. ✅

• If we first click on the tree tab and then switch to the Graph tab, the mouse multiselection is gone for quite a lot of experiments. ❌

I'll check this ASAP.