Adding points to in-game map?

Not possible as far as I know

 

Ok thanks

 

Haha, its possible xD

 

Ok. How about if I make it a full water bottle instead of an empty one. Will you share the secret then?

 

He's not able to get this joke, you don't need even try.

 

Its possible to replace original map with CUI, but why, if we have lusty map? Also don't think that server have info about zoom and positioning of default map, its pretty sure client side only. So server cant update position of markers on default map, sadly.