Oh right, if I click on a group I can add another group. 

There is? I'm using 19.1 rc2 and I don't see Add Group.

Ah I see it now. I was clicking on empty space in the list and looking for a New Group command in the context menu. It's there, but buried inside the Move To submenu.

I never knew this existed - I was about to add a request for it. I was looking for the command in the Repository Views context menu but it's not there - it's only in the main menu. Could you add it to the context menu to make it more discoverable?

I'm unable to view topic 953.

It would be nice to be able to either:

a) right click on the file in the Files tab and select "View Before" or "View Before", or

b) select "View" from the appropriate Changes window down the bottom of the screen

and it would save the file to the %TEMP% folder and open my editor for it.

I just want to view the file - not revert it, and I don't care where it gets saved.

Yes. If I double click on the entry in the Journal, it brings up the Log window. In the Files panel, I'd like to be able to delete a file from there (I still want the changes to be in the filesystem though so I can commit them later).

Some documentation or a video on how to use it would be great. I think I've worked it out, but I couldn't find anything about it.

That's great, but a Fetch button I can put on the toolbar would be nice. This approach is still two clicks (click on a small target arrow, then click on Fetch). A big button I can put on the toolbar to fetch would be easier to hit with the mouse.