Reply To: Changing the paragraph style of the NEXT paragraph using Find or GREP

I presume you mean you might move “1st paragraph after a heading” and “any next paragraphs” around, and there should always be a “don't indent” style after any sort of heading (*) and “indent” after any “don't indent” OR “indent” style.

I bet Framemaker does this out-of-the-box but in InDesign you'd have to run a script after every major edit.

(*) Typically, one would never indent a plain text paragraph after a heading or some white space, such as at the end of a list.