How to divide PPPoE pool to use different WANs

Hi everyone,
I have Mikrotik Router with 2 WAN ports and 1 LAN set as PPPoE server.
I’m trying to route the PPPoE profiles with range 10.0.0.0 into groups to use certain WAN.
10.10.0.0, 10.20.0.0 WAN1
10.50.0.0, 10.100.0.0 WAN2
Is it possible? since currently using only WAN1
PPPoE profiles.jpg
network.png

no one can help?