In the Sitecore 7.0, Content Editor, is it possible to set the base template of an item lets say 'Bank' to a Branch Item (By Branch item I mean an item created in /sitecore/templates/Branches/) Lets say the Branch item is Company with 2 Folders in it Address and Contacts .
So that when an item is created from Template "Bank" the 2 folders "Address" and "Contacts" also get created.
I think the answer is no,
But, you may define a branch definition outside the
/sitecore/templates/Branches/location. A Branche is just a item from Template/sitecore/templates/System/Branches/Branchif its helps you with the structure.An other options to create the folders automatically is with a item:added event.
And if you want to share the structure with other branches you can try to clone the branch, but than you create also clones, I never used that in this way, no idea if it works correctly.