You can sync the PLG150-AN voices that have arpeggios or step sequences to the Motif. Here is how:

From VOICE mode select your PLG AN VOICE press EDIT press TRACK button #1 - this selects the PLG150-AN Element level edit pages press F4 Native
Find TEMPO parameter Use the DATA WHEEL to turn tempo all the way down to "vce"

Press INC/YES once to set tempo = "midi" Store your PLG Voice This will sync the PLG150-AN to the MOTIF clock.