Brackets besides mission name?

In- game just under the mini-map in the upper right, it shows the current mission name ( I’m playing The Plan) and beside that are a left and a right bracket. Why are they there?

Hints that you can change the currently selected mission. On console they are the left and right D-pad buttons.

Thanks for your reply. I’m on PC. I’ll try to figure it out.

It should be be same bracket keys (unless you’ve remapped the keyboard). I’ll hazard a guess at [ and ]?

No luck with that.

Are they angle brackets, curly braces, regular parantheses, or just plain arrow keys? Should be a place to look at the key bindings somewhere in the Controls options!