Proxy as Idoc type by change pointers

Hi Friends,

I and sending vendor master data using CREMAS idoc type using change pointers to the receiver ..

If i want to implement proxy for this ...rather that using this idoc type ..how shall i go with this ..is that possible ..like whenever i make changes in the vendor master data ..the proxy has to trigger like what happens in Change pointers and send data to XI system and wait for responce..

Suggest me in this regards..how can i make Proxy working like change pointers

Regards

Rupashu...