As someone managing and maintaining a complex application (~85 columns a sheet), or as someone who would like to design a solution before populating a spreadsheet, I WOULD LOVE a data definition view as an option in the data editor. Currently, I’m having to document the combined view of the spreadsheet columns and glide columns by had to keep track and document what is being built.
E.g. in CSV
Name, data type, user-specific, relationship or link, spreadsheet or glide, category, purpose
Email, Email, -, -, both, user data, communication & authentication
Rating, number, Yes, sheet: column, glide, Ratings, Showing the user their own rating
The follow on request would be to filter those columns quickly and make edits to the options.