The segment filter UI shows only numbered "custom variables" instead of displaying the real name of the custom variable. It would be great to have the real variable name there instead of a number and guess what variable is it.
I'm not 100% sure if this has been already posted but I haven't found something like this.
My bad, I didnt think far enough.
I can use "Name of the custom variable" and combine it (AND) with "Value of the custom variable" ...