Go DRIVEBUTTONS -S,iconlettersoff NEWTAB=findexisting
This will also work, etc.:
Go DRIVEBUTTONS=iconlettersoff,-S NEWTAB=findexisting
I am not sure what you're trying to do with @keydown will work with a command like Go DRIVEBUTTONS... which generates lots of other buttons/commands (one per drive), but that's a separate matter.
@Leo
With the @keydown:none I am trying to open the drives in the current focused tab. With @keydown:shift Dopus searches the tab in which the drive is already opened and switches to it.