Warhammer 40000?

Has anyone successfully played 40k on roll 20? Was it easy to manage all the units? Do turns go quickly?  We used to do it in person before the lockdowns as part of the warhammer scout badge from games workshop and the children would like to do it again. can it be done with a small group of children aged 10-14? It would be about 8 children at most. any tips greatly appreciated, thanks!

You would have to place the imahe of all the units and place the measurement type you need. You could create some macros for the rolls you could need.

So it would take a lot to set up with all the different armies and units?