<del>Thanks for trying to understand my issue. I understand your solution, but does not understand how to implement it ... </del>

<del>Where do I put the Color field? It's as mentioned a "global" tag I want, not related to Links or Categories.
(Does LSQL react to things in the URL-string automatically? I suppose not ..)</del>

<del>Hmm. Maybe I can put it in the User base? </del>

COOL!!
It does work just by adding it to the URL.
John