Request: show regex, responsible for blocking

[DL6ER]

@jpgpi250

If somebody is going to write a manual on how to use this great new feature, you should emphasize CTRL clicking the link will open the group management page in a new tab, which makes life even easier.

What happens if you click normally on the link? I designed it in such a way that is should open a new tab. I'm not using HTML <a> at all in this code.