Reply To: Copy GREP styles from one Paragraph Style to another

1: When I define a GREP style as part of a Paragraph style it works fine

2: When I define another Paragraph style based on the first style, the GREP portion doesn't seem to be inherited as I would have expected.

That's a bit of a quizzler mate. The only way I can get to loose the “Based on” GREP style is by putting any GREP style in the new style before changing the Based On name. I have no trouble at all with my own flock of styles, all based upon a single great-grand-parent style, and I can add, remove, and edit GREP styles all along the way and see the changes propagate downwards.

It's possible to script it but it would need a cumbersome dialog (copy from what to what paragraph style) — I guess if the normal lines of inheritance don't work properly, it's easier to just copy and paste the expression.