User access – Corrector?

Hi!

I don’t think it’s possible but I would like if someone can confirm it. I was looking at the different role I can give a user and I was wondering if there was a way I could give someone that would act as a corrector on my blog a more limited access than editor.

The exact thing i would like is for that person to be able to edit posts (in draft kind of way) but still need my validation for the changes to go live.

If it’s not possible, is there any way not to give that person all the editor rights

Thanks