How to erase notes made on map?

[Galaer]

I watched klatremus supreme ghost run of Mission X. He made some notes on the map and later he somehow managed to erase them. How?

[Yandros]

IIRC clicking on them makes them disappear. It's been a while, though.

[Galaer]

Thanks, it took me a minute after your post to figure out that I need to use right mouse button. Thanks again.

[Yandros]

Aha, yes! I had forgotten that part.