Synchronizing members on two grids

I have two cards (see attached screen shot) on the new UX dashboard. (different dimensions for the 2 modules so they couldn't be combined to 1 grid)


My goal is that, when I select the project (row) on the left grid, only the project that I select will show up on the right grid. So the project members synchronize. I think used to do similar things on classic dashboard but not sure how to achieve it here... Thanks!