Mutex sign with detector-like "zones"

[Bevan0]

Feature Request

Description

Basically mutex zones set by detector signs. You place two of these signs like a detector and it creates a mutex zone in the bounds of that detector area. Waiter signs do not work for my use case because they aren't flexible and its documentation (eg. where the zone actually goes such as whether it goes on a branch track etc) is unclear

Examples

Fast-setup signalling systems, spacing between automatic trains with different destinations and timetables

[bergerkiller]

I agree this should be added, believe its somewhere on the discord in the suggestions area or wip. Dunno yet when I will add it though.