rhban,
I don't have 22, but I use Tane and 19. If 22 is as similar as has been suggested, perhaps my observation is useful.
The Edit Session image you shared in post #19 looks okay, except the tabs that should show at the bottom left of the page are missing. There should be a row of four buttons across the bottom saying Add, Edit, Delete and Restart All Rules. It seems from your messages that you are not seeing those buttons.
I don't know if you can move the Edit Session page upward to expose the buttons. If not you may have to experiment with a different screen resolution to expose the bottom of the page.
I had this problem with one install, but I don't remember how I resolved it.
Or perhaps your buttons across the bottom are showing and I'm mistaken.
As far as I know, the basics of adding and removing drivers hasn't changed that much since Tane.
I hope that helps ...
Sorry about my multiple edits of this post. Now that I've had a chance to think about this issue, I believe that I had to reduce the level of magnification that I was using in the operating system (Windows10 in my case) to resolve the issue of the bottom of the page being cut off. Perhaps this might help you?
Yikes. One more edit for this post ... Using 19, on the Edit Session page, you can click on the icon of the driver to select it and then right-click on it to expose a menu ... which will allow you to access and edit the list of drivers. (perhaps without changing your magnification setting)
