Multiboard Icons!

How do I remove a Multiboard Icon for a column?
e.g. so there is no Icon at all?

There is a trigger called set item display style.

Er...I knew that but i can't find the place where i can put No Icon (is there no Preset thing i can use?)

The trigger is:
Multiboard - Set Item Display Style.

It would look like:
Set the display style for (TheBoard) item in column X , row y to Show/Hide text and Show/Hide icons