I think we have 2 threads of discussion here. The first is one of style - playing a groove in the composer, using bend etc to mimic the slurs and fractional off the beat playing that gives a distinctive flavour rather than a mechanical repetition.

The second was one of note progression where the standard root progression is not enough, for whatever reason. Here you can practise your inversions and learn to use on-bass for those C on G type effects. Or simply sequence a different bass afterwards.

Or a third possibility that might work in a variety of situations is to use the chord modify change on the entire bass track, or on individual bass notes in the composer. Here you could define how the bass reacts to various chord changes beforehand, and still play normally with left hand live.