Reply To: How can I set special character or / style in Pragraph Style ?

I’m not sure I understand the question. Do you want a custom baseline shift and font size on all slash symbols (/) and other special characters?

If that’s the case, visit the GREP Styles panel of the Paragraph Styles box and APPLY STYLE: Custom Character Style (that inlcudes the baseline shift, etc.) to the “/”. If there’s a shortlist of characters, place them all between angles brackets (without commas) in the TO TEXT box like so:

Apply Style: Baseline Character Style
To Text: [/&^%+$]