hi,
please make it possible to configure "bestpath as-path multipath-relax":
http://docs.frrouting.org/en/latest/bgp.html: "Multi-path check
If multi-pathing is enabled, then check whether the routes not yet distinguished in preference may be considered equal. If bgp bestpath as-path multipath-relax is set, all such routes are considered equal, otherwise routes received via iBGP with identical AS_PATHs or routes received from eBGP neighbours in the same AS are considered equal.
"