Programmable taxiway path

IF you use the built-in ATC you have no problem with the taxiways as you get a red dotted line telling you where to taxi.

However, if you don't use the built-in ATC because you are flying online then such feature disappears. If an ATC directs you to follow this or that taxiway, then you have to guess, or get an airport chart.

Would be nice if via an SDK an application can specify the taxi route (A B C1 E) and that the internal stuff starts rendering the thin red line to follow.