Row creation should have placeholders or reminder of properties information

Currently, when using Live Data in edit mode and adding a new row, the right kind of field (date, number, text, etc) is proposed to the user for each entry.
But, I feel like some information is missing, in particular reminders of the field's name and type.

This would be particularly helpful for tables already containing a lot of content (where the header can't be viewed), or for limited vertical viewports.