Hi, Worked towards the Hello World example to get a button in the extension menu. Nice! I want to get the selected Entities when I push the button in the menu (or move it to a context menu later). I looked at the API docs, but did not find what I needed. ChatGPT gives me bad examples with non-existing classes and functions (as usual...). Are there any examples out there? Of just a quick reference? (i'm using 10.15.0) Sven.