ECMP with CCR1072

I am looking for a feedback.

Since CCR1072 doesn’t support fast path with rx and tx, I am looking at 5-tuple ECMP (protocol number, IP addresses, TCP/UDP source and destination port) alternative.

Would this be supported?
Would this be supported in fast path?
Would mangle be supported in fast path?

Per my understanding, the only ECMP that is given via a routing protocol within RouterOS is in OSPF and Static.

I am not certain that there is an ECMP capability for BGP (using BGP multipath for example).

I don’t believe ECMP is influenced by fast path, or mangle. I could be wrong but I don’t think it is.