Swap filters

I want to create a button to swap the filters from the show field, to the hide field..

Something like this:

Set HIDEFILTERFILENAME=SHOWFILTERFILENAME
Set SHOWFILTERFILENAME=""

However, this doesn't work. The first line doesn't get evaluated, the static text "SHOWFILTERFILENAME" shows up in the hide field..

How do I do this?

anybody?

I don't think it is possible at the moment.

Okay. thanks Leo