Thanks everyone for your replies. I found using the brute force method but instead of deleting and letting the
system re-generate the keystore.tdx and assets.tdx I copied them over from a previous manual save.
This worked and I did not lose my extensive picklists
I resized the window when editing a rule using the white square on top right corner. Now the window is full screen there is no way to return it to previous size.
The only option is the [X] close screen box.
When I re-open the rule for editing after closing, it is still full size.
This is a...