The Search function also accepts coordinates in this form
55°55’56.5"N 130°17’28.2"W
However it doesn’t like extra spaces, the way the game stores them in .pln files…
N59° 20’ 4.00",W107° 10’ 55.00" no go, remove the spaces
Or what I usually do is have little navmap open, put a waypoint there on the map and steer the little plane towards it with the heading bug. There might be a way to enter gps coordinates in the G1000, or there should be a way (it’s gps!), but I haven’t found it.