Subplots w/multiple y-axes

Hi, I’m trying to get a subplot working with a 2x2 grid where each chart has two y axes.

I can get it to work with a grid that has 1 row and 4 columns, but haven’t found the right way to switch it to 2 rows and 2 columns. Is there a way to do that? I’ve tried a lot of variations of adding a subplots value to the layout grid.

Here’s the working 1x4 version: https://codepen.io/jsmith0907/pen/BaBYjzV

Here’s how: https://codepen.io/etpinard/pen/GRKGgrq?editors=1010

That works, thanks so much!