Originally Posted by
wndrngdru
I'm certainly not going to invalidate your desire for a map ping feature. However, personally, I've not needed it since I found the quick shortcut for drawing and erasing arrows. Just hold the left & right mouse buttons down while you drag an arrow out. To quickly delete it, just click both buttons again without dragging. You can also quickly create/delete the different shapes using the same technique but also holding shift, ctrl, or alt.
Prior to having this bit of knowledge, yeah, navigating the radial menus just to draw an arrow was a pain.