Destination GRID in Lat Long in degrees and decimal minutes

Hello, iam really nnot into programming, so i need a little bit of help ;)

I really would like to have a data field like the Coordinates (WGS-84) from Navicom, but not for the current GPS Location. Instead I would like to have the Target/ Destination Location displayed. The idea behind it is to display the Location in MGRS and DDM on one screen.

Thanks for the help

Greetings 

Philipp