Consider crossings and sidewalks in on-foot sections of PT routing

I’m working on a project with PT routing and we’re using Graphhopper for it. One of the functionalities we needed was for road crossings to be taken into account in on-foot sections to indicate the user where to cross the road, if it is needed. Being able to follow the sidewalk would also be useful.

What’s the current state of these functionalities? Is it being worked on? If not, could I try implementing it (should it be implemented in another routing profile & would you be able to support the functionality in future updates)?