Please add the ability to be able to share a SharePoint list item or a file in a document library.
Often when developing business solutions we have a need to only allow certain users in the business get access to specific items/files, as distinct to the users that might be the general members of a site (and who by definition already have access).
It would be great to be able to automatically enable scenarios where permissions for an item/file would automatically be able to be configured for a set of users.