[Observium] How add MIBs MPLS LDP

Hello support, Please can you help me? I have monitoring MPLS sessions and MPLS Interface in my Observium server. How i can add MIBs to Observium? I have MPLS-LDP-MIB file in my server in directory /opt/observium/mibs

Thanks

King regard Nurbek Suleimanov skype: nfastik