How can I share columns in development mode?

There have indeed been some changes between 2.x and 3.x versions of XD in the area of both Grids, and Share.

E.g. these grids were removed from the Developers View, and they can't be set separataly anymore to either squares or layout. It's one type of grid for all – only the measurements may differ. However, the Make and Use Default buttons for the grid seem to be not working properly, so maybe there's something wrong with them on a different level.

And the online shared rendition for the Reviewers and Developers have become a totally different ball game. These views have been changed two or three times the past year, so it might change again ! Having the option to show a developer the calculated grid behind the design proved indeed worth sharing too. As a matter of fact, at UserVoice you can see there's already a pending request taken into development !