load balancing / backup

Hello,

I have three OVPN connection on my Mikrotik.
That my server has access to all three networks and proxy servers I added three srcnat-masquerade rules.
This works fine.
server----10.10.1.1====10.10.1.2:8080, 1080
server----10.20.2.1====10.10.3.2:8080, 1080
server----10.20.3.3====10.10.3.2:8080, 1080

Is it now possible that when the Mikrotik checks that one OVPN connection breaks away that the other proxy overtakes?
For example if a connection between server and 10.10.1.2:8080 does not work any longer the Mikrotik should replace the destination 10.10.1.2:8080 with 10.10.2.2:8080.

Thanks.

Try to set ping gateways, so when one fails, other link is hot backup.

Is there any example in the documentation?
But changing of the gateway is not enough, the destination IP address also must be changed to reach the proxy server - is this also possible?