You can set different routing policy for a peer. For example, you can set different filter for a peer.
bgp multiple-instance
!
router bgp 1 view 1
neighbor 10.0.0.1 remote-as 2
neighbor 10.0.0.1 distribute-list 1 in
!
router bgp 1 view 2
neighbor 10.0.0.1 remote-as 2
neighbor 10.0.0.1 distribute-list 2 in
This means BGP update from a peer 10.0.0.1 goes to both BGP view 1 and view 2. When the update is inserted into view 1, distribute-list 1 is applied. On the other hand, when the update is inserted into view 2, distribute-list 2 is applied.