Update specific Ghost posts via Zapier

Hello team,

is there a way to update specific post in Ghost via Zapier?

At the moment, it is only possible to create posts in Zapier.

I have posts with YouTube videos, I have an idea to generate transcripts via e.g. Descript and autoupdate only specific related posts via Zapier. I need a way to filter specific Ghost blogs…

Would that work? Or what would you suggest for this workflow?