Using SPAU for custom development

Hi Guys,

take the following szenario:

We have Development system A and a copy of this system Development system B. Where B is the project system. In the time the systems A and B will be enhanced using different development. At one point in time the developments from system B should be merged with system A. Could this merge be done using some similar functionality like the SPAU after SAP-Upgrade to ensure the developments with origin in A and developments with origin in B are compared and amended in the right way ?

Thanks for any idea in managing this.

Best regards,

André