Is Course Required for GS/LOC Acquisition?

[SHaines]

I know that in Boeings and other aircraft, ILS landings require that the approach course be entered into the FMS in order to properly acquire LOC & GS. Can anyone tell me if that rule applies to the TBM900 G1000? If so, I have found that to do so requires making the course setting while in flight (since it cannot be modified while the airplane is on the ground) bu switching the CDI to NAV1, entering the desired course using the CRS bug, then switching back to GPS mode. To reactivate GPS mode in the FMA it is then necessary to hit the NAV button twice. 

Can anyone tell me if I am correct, that course is required for ILS acquisition in this aircraft, and that the procedure I outlined is correct? Thanks. —SteveH

Edited April 27, 2020 by SHaines