Dragging and dropping a survey file

Using our states DOT standards.

When I drag and drop a survey csv file into the field book I'm presented with a couple of choices on a popup box.  Neither are what I want.  I'd like to use are own, which I can through the import wizard, no problem.  But I'd like to add ours to the drag and drop menu.  I think these are in a dgnlib but I'm not sure where.  Any thoughts on where?