Automated buttons for workers

[jabancho]

I have seen several screenshots placed in the forums that show a long row of buttons for the different activities of workers, and I was wondering if someone could please tell me how to activate those buttons. I know the keys, but that will definitely will make life easer to have them in front...
thanks

 

[thetrooper]

Check your preferences.

 

[Paradigne]

Show advanced unit commands (?) in preferences