When setting up the Write In Designation you should be able to do a drop down of your current Funds.
We have over 150 funds that donors donate to since we are a hospital foundation. On specific donation forms we prefer to designate 6 or 8 funds that we would prefer they choose: HOWEVER, we want to give our donors the choice to choose whatever fund they would like. Therefore, the Write In Designation makes sense to use; HOWEVER, we don't want them to choose funds or projects that we don't currently have available. We want them to choose from the current 150 funds that we have already set up. A donor should be able to start typing in the Designation box and a list of drop down items related to what they typed should come up. Or we should have a choice to choose "Table" instead of text and the table should be able to be a "Drop Down".