Quote Originally Posted by omegared View Post
Doesnt using the eye button use one more mouseclick than just clicking on the % button on the mission screen?
Possibly, though there are up to 4 options usually on the eye-button menu, where only 3 max will fit on the main screen, one of which is usually taken up by a non-clickable "best case among all followers including those that are on a mission" button. So, I usually choose more carefully.

[edit] Also, this is just making one possible option easier to use; it's not an either/or proposition.