Add a 'source columns' as a separator in the Parser

In the Cloud webscraper, the parser let users to accumulate 'source columns' to create a virtual one. This is also possible to add a separator between them. I'd like to add another 'source columns' as a separator in order to simply concatenate anything anywhere in the scrap. My objective is to reconstruct profil URL based on separate IDs grouped in the scrap through reviews URL for example.

Here is the field I'm talking about :