I don't know if I understand you correctly but if you just want to switch RG0 and RG1 back to node 0 you have to do the following:
For RG1
request chassis cluster failover reset redundancy-group 1
If Noce0 has higher priority for RG1 it should switch to Node0 as preempt is on.
For RG0
request chassis cluster failover redundancy-group 0 node 0
for 5 minutes Node1 will be in secondary-hold state for RG0
request chassis cluster failover reset redundancy-group 0