Hello,
I am working with Road layer and I need to put arrows on the end points of road, like this:

I am adding Shape Marker at extremities of polyline and it is the easiest part.
Sometimes I have to merge roads (because they have the same ID) in the middle of one for roads. In this case the road should have 3 endpoints and I need to put arrows on these.
The problem is that it puts arrows on the merge point, but I do not need it there and can't find how to remove these arrows from the merge point.

Anyone could help me with this please?