Importing not-just-1-best bgp route to VRF in XR in case of unique RD per PE

Question

I'm trying to import  BGP prefix from several different sources into VRF for fast convergence. When RD on local and remote PE match, it works right away. But if RDs are different, then I can see many different routes in "sh bgp vpnv4 unicast rd x:x (remote PE's RD)" with NOT-IN-VRF flag, but only best one is present in "sh bgp vpnv4 unicast vrf YYY" or  "sh bgp vpnv4 unicast rd y:y (RD of local PE)". 
As I understand, in IOS it is handled like this:
router bgp 1
address-family ipv4 vrf YYY
  import path selection all
  import path limit 4
But can not figure out how to do it in XR. Any suggestions? Do not want to roll back to same-RD-on-all-PEs approach, as IOS doesn't do much of add-paths for VPNv4 ;(. 

Answer 1

I dont know if this will exactly suit your needs but you can enable PIC (Prefix independent convergence) with the additional-paths command.
The exact command depends on your XR version (additional-paths install backup or additional-paths election)
Refer to the document:
http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/routing/command/reference/b_routing_cr41crs/b_routing_cr41crs_chapter_01.html#wp2841279186