Tone in ACR missing in CS6

I've been trying to do HDR in Photoshop, and watched a video where after merging the images in Photoshop, theres an option to Tone in ACR, which supposed to bring the merged 32bit image straight back into camera RAW.
Only problems is I don't see that option, all I see is OK. I also get an error 8800 once in awhile when doing the svae and OK, but thats a seperate issue.
Any ideas where my Tone in ACR option is ?

It is in photoshop cc.

You will need to save your 32 bit merged file as a 32 bit tiff and then open that in acr or LR to tone the image. Toning 32 bit tiffs became possible after acr 7.1, so make sure your version is up to date.

Kirk

To open tiffs in acr you need to enable acr tiff handling in the camera raw preferences, otherwise the tiff will just open straight into ps.

Kirk

I should be seeing the ability do do Tone ACR here on this screenshot, but the option isn't there.

It's only in PS CC, and you have CS6 right?

Sorry PS CC? Yes Photoshop 6