I am having issues adding this rule (target="CloneOf", comparison="does not equal" and the filter value=".*") to the "All" filter.
I press "Tab" > "Display" > "Mame" and in "Display Edit", I choose filter "All" but when I go into "Rule" and select "Target" the section to type something does nothing. I see a yellow box around the blue bar but nothing comes up when I type

It's strange that I can create a new filter call "No Clones" but can't type anything in the "Target" / "Comparision" fields but I can type the ".*" (dot star) in the "Filter Value" field...