If your DAP is connected and your Dapper “Go” button does not appear it’s likely that the Dapper has had its access to the DAP disabled. To fix:
Click the storage icon to the left of the slider and select the first, or internal storage of the DAP
If you have two storage cards/areas then click the right hand storage icon (on the right of the slider) and select the second storage area.
Now lock your config an and you should be good to go