EDIT: I mean that when on viprins you know how you add lines on the editor?????
well when you add it to the tfm one it would be able to pop up before you test the map... hard to explain
ill provide screenshots if I can: (not here yet)

What exactly do you mean by lines

And can you be a bit more specific

I assume they mean for map editor colour joints to be shown in the editor without having to validate the map to see them.

A new map editor is planned by the developers, this is one of the features they plan to introduce with that.

To make the lines appear in map editor from Viprin you have to add a ground for them to be visible. But if you mean like an actual ground, you have to manually add those in.. I'm a bit confused of what you're asking though.. o_o

I mean that when on viprins you know how you add lines on the editor?????
well when you add it to the tfm one it would be able to pop up before you test the map... hard to explain