Current author post grid

Hi. This is the same for the built in post grid, and PowerPack’s as well. I’m attempting to just display the posts of the current author.

Meaning, that I’ve put a post grid in my post Themer template. I want that grid to show previous posts just by that author.

I know I can “Match these authors”, but I can’t make it so I can just choose that current author. Any ideas?

Probably by filtering the Posts module with PHP.
Here’s the principle: