I would only consider it if all the motors were the same type and configuration/rating.
You normally set the parameters up for one particular configuration of motor, so mix and matching them may cause you to run into a few different problems.
Even running two motors simultaneously off of one VFD, the motors should be the same and the rpm and load should not differ by more than 10% between each.
Going with a make like WEG, you can get free engineering advice on their product usage.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.