http://iscoresports.com/

I have a player that was entered as making an out but really got a single. I went to Pitch by Pitch and clicked on the play. I then clicked on Edit where there is a bar across the top that reads OUT SAFE QUICK. Of course the OUT is highlighted and I get all the OUT options on the screen.
My problem is that it does not allow me to click on SAFE where I'm sure I'd be able to click single.
What do I do???

You can not change an Out to Safe or a safe to Out. You can change how someone was safe or how they were out. If we allowed you change an out to a single, then you would wind up with 4 outs in the inning (and any other number of issues).

You can modify the stats for the game directly by going to Game Manager, selecting the game, selecting Batting Stats, and then tapping on any stat you want to override and entering the new value.