HOW in the world am I using RegEx in this app!?

I’ve tried EVERTHING I can think of … but I simply CANNOT get Regex’s to work … constantly getting errors.

Now, HOW do I use RegEx in this app? And please, be VERY SPECIFIC about WHAT I have to select and WHAT to type etc. As I haven’t been able to figure out ANTHING that works … not even the SIMPLEST of the SIMPLEST … and not even able to copy the examples and use them.


Holy Christ … I had an erroneous formular attached that I had ‘forgot’ to ‘unclick’ … facepalm!