Is it possible to set the minimum width of columns in a Grid Layout?

[MappyIan]

I'm building an Experience using the Grid layout which consists of three columns.  I'm using the Grid layout because it automatically switches to a mobile-friendly view at small screen widths, which is what I need.  However, there doesn't seem to be any way of specifying a minimum width on each of the columns.  Here's what it looks like at 1024x768:

This is fine, but I wouldn't want the two left most columns to get any narrower, but if you make the window narrower, the columns shrink to the point that they're basically unusable.  Here it is at 600px wide:

What I'd like to do is set minimum widths on the two left most columns in pixels so that I have control over how narrow they get.

I  think I know the answer already, but is this possible?  Or is there a different way of laying out my Experience that would achieve the desired outcome?

Thanks in advance!

[JeffreyThompson2]

https://doc.arcgis.com/en/experience-builder/latest/build-apps/design-for-mobile-devices.htm

Have you looked into the responsive screen size options yet? Experience Builder allows you to create designs for Desktop, Tablet and Mobile sizes. You can fully customize your design for each of these size levels.

[MappyIan]

Thanks @JeffreyThompson2, I've seen that but it doesn't solve my problem.  I really just want to set a minimum width on columns when using the grid layout.  I've logged this as an Idea in case anyone else hits the same issue: https://community.esri.com/t5/arcgis-experience-builder-ideas/add-ability-to-control-the-minimum-wid...