I am considering upgrading my TruTrak Digiflight II to their Vizion 385. Does anybody have experience with the Vizion 385 and the AFS 4500 system? My specific question is with an ARINC module will I be able to set preselect, select altitudes through the EFIS or must I set this on the autopilot head? Same question with step down, glide slope intercept and Minimum altitudes during an LPV approach?