merge (2) different fields

I'm trying to merge %LABEL% & %PUBLISHER% and seperate by "; " problem is there is no option to.

I've tried this code but it doesn't add it just completely replaces it :flushed: :

Use this code:

Thanks did this the trick but in my case it was vice versa, so:

one problem now. Even if there is no %LABEL% field the "; " will be added at the end of the %PUBLISHER% tab. Would I need to define an "$if2" function?

%PUBLISHER%$if2(; %label%,)