I achieved this with Macaroon, setting up the bars and the macros within those buttons as desired on Char A and then copying the Macaroon*.lua files from WoW\WTF\Account\accountname\server\CharA\SavedVari ables into the SavedVariables directory for Chars B, C and D.

http://www.wowinterface.com/download...-Macaroon.html