That is a program by face_off who is also the author of RealSkinShader etc.  I am not sure where he is selling it now; i'lve had it for years.

It is a python script that opens up a pallet listing all the groups in the selected model (such as V4) and set AO parameters for each. You execute and it goes into the procedural nodes and attaches/changes settings for AO nodes on all.

I like it.

::::: Opera :::::