Dual WAN with VPN for each one

Hello

Version: MikroTik 6.49.8

I have a MikroTik router with two WAN interfaces, WAN1 and WAN2. I want users to connect to the internet through a VPN. However, when I add a PPTP client, it only connects through WAN1.

The only solution I found, which works correctly, is as follows:

/ip route add comment=“Force VPN to use WAN1” distance=1 dst-address=11.11.11.11/32 gateway=192.168.10.1

But I only have one IP address for the VPN connection (11.11.11.11), and I need one PPTP client to connect through WAN1 and another one through WAN2. How can I achieve this?

Thank you!