I think this needs a script?

[Mats]

I have one field containing an "X" if I made a succesful transaction. Also for every week I fill in the number of the week as I work.

If I want to have a "find" function that can find i.e. all the "X" I made at week 38.

How can I combine this two finds in one go?

I am not so good in FM so please write slowely

[Fitch]

In a single Find request you can specify both criteria ("X" and 38). I'm not sure I understand where you are having trouble.