BGP Settings for Seperate Subnets on same ISP

Hello, I work for an MSP and we recently took on a new client who is using a MikroTik routerboard 1100 and the question/situation I have is as follows

My clients ISP is providing the public IP addresses and an AS number for BGP, currently the routerboard already has 1 BGP configured, do I need to configure an additional Port for the new subnet or can I use the current port and just add an additional BGP configuration? As well do I need to do anything else when adding a second BGP in the system? I’m extremly new to this product and not sure 100% how it works compared to others

Thanks!

whatyou ask is the same to all system. BGP you can configure "as you want"as long as you can reach the bgp peer IP. Remember to have multihop enabled, if your bgp peer is not at the same subnet as your bgp router.