Bandwidth control of a "separate" policy!

[BigCat58]

1. I'm running 16.5.2 on a U150.
2. I provide internet to my neighbor with teenagers via Unifi point to point transmission and access points.
3. The default policy is on LAN of course and I have enabled eth 3 and created a second policy.

Is there a way to apply bandwidth control to the eth3 port without it affecting my LAN port?

If anyone can suggest a better route for me to take, I'm wide open to suggestions.

[jcoffin]

Use Bandwidth Control to create a rule for the interface and set the priority.