How to restore the LR5 sharpening slider. It is missing after switching over to the unsharp mask in cs6. Thanks in advance for the help.
Do you mean you are missing the Detail section in LR Develop? If so right-click on the title of another section like Basic or Tone Curve or HSL, etc, and put a checkmark back next to Detail.
If you mean that the sharpening slider has a 0 value instead of the original value you set it to in LR, then that is normal, because the file coming back from PS is not a raw file, anymore.