current user in post grid

Welcome to our forum,

This is possible in 2 way.

#1. via filter hook, we have filter hook for query argument, so you can add your own arguments on it to filter post. but it will works on all of your post grid.

https://pickplugins.com/documentation/post-grid/filter-hooks/post_grid_query_args/

#2. More Query Parameter (Premium only)

you can add your own arguments under the option "More Query Parameter", this also support shortcode for passing value or arguments, please see the screenshot ([current_user_id] is a shortcode that returns current user id)

http://imgur.com/a/zPYpz

I hope that help.

Regards