I created a custom content type called PIN Folder. The content type has 3 attributes - title (required), ms (optional), and comment (optional). In my library I created a default view for PIN Folders which use this content type. As desired, now when I add folders through the File/New Document/PIN Folder button, a folder is created with the PIN Folder attributes.
The problem is that when I drag/drop folders via the Explorer view, or add a folder using the File/New Folder button, the only attribute applied is title. Based on this, my assumption is that drag/drop and New Folder use the standard folder content type rather than my custom content type.
There are going to be numerous picture libraries with hundreds of PIN folders in each library, so drag/drop is the best method for initial creation for the library content.
Is there a way without code to enforce use of my folder custom content type when dragging/dropping or using New Folder? (I do have SP Designer.)
Note: I considered creating a subsite and changing the default folder content type for that subsite. Would that be viable?