Easy option to add performer from StashDB into Stash?

I found a performer on StashDB and want to add her to a scene. Is there like a one click option to add from StashDB (or other box)?
If not, what is the easiest workflow?

Depending on how you scrape a scene, they can be created automatically or semi-automamatically. See the guide for Scraping scenes via stash-box - Stash-Docs.

There is also batch option.