Let me suggest you to make dynamic VPLSs in VPLS window take it's names from BGP VPLS configuration which has VPLS name field.
RouterboardOS applies generic names like vpls1, vpls2, vpls3 ...
Sometimes and in general it's difficult to find out what is that generic vpls. you have look at peers address in vpls properties and than look which bridge used for vpls and after that you can find out, clients ethernet port of that vpls tunnel.
preconfigured BGP VPLS name should be seen in VPLS tab for those dynamic VPLSs intead of generic vplsX names.
Thanks in advance.
Caucasus Digital Network.