Mechanics of Exploration Technology?

[John Steidl]

Can someone describe how this works?

If I select a unit with unexplored adjacent spaces before it moves, it will show a button "Exploration Technology Available", but the button is brown and can't be clicked.

Tx

[Lunalol]

It is not a button.
Click on a hex, you will have a dialog box...

[John Steidl]

Thank you!!