Points to line?

I’m interested in finding out the distance from a selected set of points to a specific road. So for each point, how far are they from that specific highway? Is there a way to do that with this tool?

Depending on your exact requirements, this might be possible. Do you want the straight line distance to a road adjacent to the set of points? This is done internally for routing via a so called QueryGraph with Virtualedges. It is best if you look at Graphhopper for this sort of stuff, but it will require some coding knowledge.
Otherwise you can try and define all your start points and end points for the matrix service. But I do not know if this is what you want

Thanks for the advice! I will take a look at Graphhopper and QueryGraph.