Ok.. I will try to clear some things. In CRJ's FMS we will be using Navigrath navigation data base for everything (NDB, VOR, VOR/DME, ILS, FIX, AIRWAYS, SID, STAR etc.). It won't be in anyway connected with X-Plane navdata. If someone don't want the autopilot to fly the SID or STAR... than you can just select the SID or STAR you need to fly. This way FMS will automaticaly turn your radios to the nearest VORs so you can pay more attention to flying than tunning the radios(and on final it will automaticaly tune the ILS frequency and set the coure for the runway)... It will draw the SID or STAR on MFD, so you can monitor your fly... flight director will be showing what you have to do to perform the SID or STAR... and so on... So if someone want to do it manually, than do it... but remember about RNAV approaches, some of them you can't perform without FMS... That's why we decided to choose AIRAC, because with default navdata it's impossible to make this plane as real as possible.