How to use scouts?

[BabyPanda]

I just have nothing on the map. There are scouts icon showing on the map, but I just can't use them.

[strangebirds]

If you have an objective chosen, a prompt will appear to use a scout on the part of the map that's centered.

[BabyPanda]

Originally posted by strangebirds:

If you have an objective chosen, a prompt will appear to use a scout on the part of the map that's centered.

It doesn't have anything appear on the map after I chose the objectives.