This Is a port of the Gridfinity box to Solidworks and it is smart and fully equation driven file.
Credit for the original design goes to Zack Freedman. All I did was port it to Solidworks.
Link to original files https://thangs.com/designer/ZackFreedman/3d-model/Gridfinity%20Divider%20Bins-60721
To modify the box right click on the equations folder and click manage equations then change the number in the value/equation column, you should not need to suppress any features manually they will suppress/unsuppress themselves on their own.
The author hasn't provided the model origin yet.