Hi ricbertsch,
It does already work the way you want. Make sure you have
set up clients, and assigned them ownership of a sub-portfolio. Next, go to this sub-portfolio in the Portfolio Editor, and right mouse click on it, and choose "Properties...". Notice in the bottom/right there is a choice for "Allocation Target". Set this however you desire. Now, create any Rebalance report for whatever date you want. It doesn't matter what sub-portfolio or allocation target you pick, as that will get set when you batch print. Now, choose "File / Batch Print/Email...". In the list of clients, check each one you want to print, and choose "Print/Email". When this Rebalance report gets created for each client it will use their sub-portfolio, and the Allocation Target of that sub-portfolio. This allows you to use different allocation targets for each client when batch printing.