Cannot edit search synonyms and unable to add to window in customiser

When we launched 365 (desktop) everyone was really excited by the search synonyms, it was one good example of how the 365 search was way better than in v6.

But, in Web UI there is nowhere to edit synonyms.

If you add some in the database they work in the search (certainly for products).

So, definitely worth a quick bit of effort to add this to the interface so that users can use this great feature (that we have but arent able to use!)