Two providers, two LANs how to make 1 provider look into the 1st Gateway. And the second looked in the 2nd swarm Gateway?

Question

Mikrotik

In general, there is a microtic to which Kyivstar has already been connected, I need to make it so that when another provider starts it, its wire works the same way as Kyivstar, but at the same time two providers are together.
Example:
WAN 1.Ether1- Kyivstar
LAN 1.Ether2-192.168.0.1
WAN 2.Ether3-My Internet-192.168.88.67
LAN 2.Ether4-192.168.90.0/24
LAN 2.Ether5-192.168.90.0/24

Answer 1

Your case is right - TYK
Only on 2 ports, why do you have the same network, or is it Bridge I hope?

Answer 2

mark incoming and outgoing traffic, and then PCC or other balancing, as you like, or direct the necessary computers to the necessary providers.