What happened to the 'Add Space Before Capitals' rename script?

There used to be a built-in script or regular expression that added a space before the capital letters in a filename: ARedBall01.png became A Red Ball 01.png

I cannot find a script or regular expression that does this; any help would be appreciated.

I'm not sure if a preset for that was ever built-in, but you can find one here:

Thanks so much... I have really missed that script/regular expression! (It was always there until the upgrade to DOpus 12). One more question: how do I modify it to make it add a space before numbers too? (Example: rename BlueBook03.jpg to Blue Book 03.jpg)