Problem with 802.1q trunking

I am trying to setup a CRS125 to allow for multiple trunk ports. We have a tower site that is a distribution point for multiple customers, and we need to extend VLAN management beyond this site.

I have a trunk link to this main site, and have 3 other sites being fed from the main site that will have MikroTik routers and will need VLANs trunked to them.

My problem is that I am as yet unable to figure out how to configure multiple VLANs on multiple ports on the same switch.

Thanks!
Jay Lytle