Yes, I hate it when it's not available.
I do and found a way to make it available (again?...)
-use
unren (don't work with URM the last time I tried... don't break the game but disable the URM function)
-choose the 9th element of that one (i'm sorry if i'm not clear... i'm french speaker... just trying to help)
-then, in "your game folder"/game/Script/screens, open screens.rpy (with a code editor or... at least.... word.exe)
-ctrl+f (search) type "auto"... and you'll find it (I hope so...)
-suppress the "#" before it
-save
-start your game and enjoy the auto function ( or tell me that I suck... if it didn't work just tried it on 1 game that night... a lack of experience with a good feedback can make me grow ;-) )...