This would include making the cells for table (excludes the column headings i.e. days) editable so that user can edit the displayName of the associated grouping items dynamically.
for simple values such as "location" which users might enter directly.
for cells representing sub-subfolders. No need to make editing here 'dynamic". You have other things to worry about. Simply bring up a dialog with a text box that users can fill. Single click on cell and context menu option too.
This would include making the cells for table (excludes the column headings i.e. days) editable so that user can edit the displayName of the associated grouping items dynamically.