Custom Location list

Is your feature request related to a problem? Please describe.
No.

Describe the solution you'd like
Right now the Proxy Hosts tab in the UI list the domain name of the source and destination which we want to forward it to. Which are working great just like we expected. But we have a condition to use the subdirectory for each app behind the proxy. ie. test.com/app1 for app1. , test.com/app2 for app2. and so on. I add it to custom location and it works like we need.

But it became a bit messy when we add like 20 or 30 custom location under the same source->destination item.

Describe alternatives you've considered
The list of all custom locations group by source/destination. Just like the Host tab but for each custom location instead. And the tile of all the custom locations.

Additional context
If there's already a way to accomplish this can anyone direct me to the document or a screen. Or if the way I config NPM is wrong please let me know

Thank you.

The issue names the Proxy Hosts tab, custom locations, and the UI list but no files, tests, or entry points. Start by locating those UI views and reviewing how custom locations are currently displayed; done means providing a less cluttered grouped or tiled view for many locations under the same source and destination.