Hey Dory,
Assuming that I'm interpreting this correctly, you would want to create a segment that only triggers on navigation to a specific page(s). To do this, go to your segments and select Create New, then go down to the Advanced Settings button and select specific pages then add your specific URLs. Let me know if I'm off base here.
Once you've got the segment, you can bind your campaigns to it as you normally would, and it will trigger on navigation to those pages.