Please change default sample of JavaScript code in action "Transform and Replace Selection With Java Script Code. Currently it relates to
clipboardContentString.toUpper()
In my opinion better is to use something like in elements of SubMenu: Markdown
${clipboardContentString}
I recommend to use ChatGPT or similar when trying to create transformers without Java Script knowledge. Give it the example code as input and tell it what you'd like to transform the clipboardContentString to - it works really well.
Sorry - I hate AI solutions - they make people dumb 
I just suggested (only in my opinion) better sample code.
Anyway - thanks for the BTT - I've abandoned the idea to buy PopClip - your TextSelectionMenu seems to be enough for me.
mhh on the one hand I agree - template strings are great and powerful. However I also think there are many people who have never seen that syntax but know the "old" JS ways of concatenating strings.