Ros 7.1Beta 6 route filter syntax

RouterOS RouterOS beta
1

Hello,
i have a mikrotik ccr2004-16g-2s+ :

  1. can I downgrade it to ros 6 ? the factory ros is 7.0.4 and I tried to downgrade but I could not.
  2. In bgp rule I want to set local pref for my inbound filtering and prepend my outbound filtering so I am using this filters:
    inbound filter:
    /routing/filter/ruleadd chain=bgp_in rule=“set bgp-local-pref 250; accept”
    failure: invalid match at if

outbound fitlering:
/routing/filter/rule
add chain=BGP_OUT rule=“{ set bgp-path-prepend 2; accept }”
but they are not working and show me error,
any idea?
Thanks,
Thank you.

2

I ask you a question, do you know if Layer-3 MPLS VPN is fully functional in RouterOS 7.0.4? Or is it just another way of naming RouterOS 7.1beta6?