How do you get the coordinates of a territory so that you can paste it on chat?

SHIFT - Paste territory or bonus names into the edit box of the public chat.
CTRL - Paste territory or bonus names into the edit box of the team-only chat.
taken from wiki

you can use the bonuses and territories buttons under settings to do a search for the territory after your teammate has linked the name

hm how do you get the coordinates from the map in the first place? anyone with a link?

what do you mean by coordinates?