Hi,
Only manually delete or modify those test folders, WVSX will trigger as ransomware behaviour. Copy them is OK, we didn't reproduce the issue you have encountered.
Yes, it's possible. You can manually add the extensions that you want to rollback.
HIPS and firewall are two different features working respectively.
Here is the introduction.
How did you set the rule? There should be no popup again.
Good suggestion. We will consider to add this button.
Thanks for your test and positive feedback! We will keep WVSX improving.