Dont ask me about the origins of the name but it is essentially a program that allows AD AF members to tranfer to the Guard/Reserve component to serve out their remaining service commitment (normally 2:1 for enlisted, 3:1 for officers).
Force Shaping is the overarching force reduction initiative in motion now to trim approx 16,000 airmen from the AD AF. It's utilizing a host of personnel tools to include Palace Chase and Limited Active Duty Service Commitment waivers (ie walk free and clear), as well as others (like my favorite: voluntary transfer to the Army).