@Ruben: As you seem to be the one who answers questions:

@Ruben: As you seem to be the one who answers questions:

Could you please give me a hint about my question:

http://help.zoho.com/portal/en/community/topic/how-do-i-call-a-function-from-an-expression-with-current-record-as-parameter

I just became a paying customer now, so please give me a good start, I would appreciate a lot, thanks!