Hello everybody,
Thanks a lot for this new version.
I just notice that you cannot choose the blocks you want to remove when you open the menu "Unused blocks".
Already on the list
Oh, I'm sorry.
Nothing to be sorry about 
I noticed this too
Just to be clear, it's only a isual bug. You can select / deselect the blocks, and they get rmoved if you click ok. The only problem is, the checkboxes don't update.