I have read through the related posts (original post that I'm making
this in response to) showing me how to extend the ResponsiveGrid in
React.However, I have yet to see any solution that can actually add
custom properties to an extended ResponsiveGrid Sling model. This
example repo by godanny86 with an extended ResponsiveGrid shows how to
make it custom, but it doesn't show how to add properties to the Sling
model.There have been other posts this mentioning this solution, such as
this post, thi...