Hi mikrotik team,
I think we should consider to make RoMon connectivity via IP. So it will be more flexible.
RoMon client should connect to RoMon server by pointing RoMon IP Address from RoMon configuration. Maybe we can use multiple targets (2) to be targeted in RoMon client which destined to RoMon server.

cmiiw.

Not sure I'm understanding you, but RoMON already supports L3 connectivity, and further "hopping" to other routers behind the L3 connected one.