Map filter for trade routes?

Does anyone else agree that we need one? When assigning a new trade route it'd be nice to see where all of your other ones are going.
It would also be useful to see where the route goes through, for example. using to to make sure that trade routes don't path through empires that you're planning a dow against, or that are hostile. Ideally, It'd be convenient for seeing opponent's routes, which are already accessible to the player anyway. I know you can see routes over a small area when a caravan is selected, but it'd be nicer to have a selectable map overview to that you can take a step back and look at things. Does anyone else agree that this would be helpful? Thoughts?

It kind of does. when setting up a trade route you should see white lines where your current routes are headed, kind of looks like snakes bones

next to your minimap there is a scroll that has that option. Check it off, and all your trade rooute will show.