Final piece of the sheetnode puzzle! Is it possible to attach an SC feed to an attachment view?

Hello again,
I feel like I'm so close to finally getting sheetnode and views to display my data in exactly the way I need it BUT...

I have a sheetnode View, "Report", which contains several Views Calc fields providing weekly totals of various nodes. The weeks of the year 1-52 are on the top X axis of the sheet and the fields being totalled are on the Y axis. The master sheet displays the total numbers for the year. Then there are additional page displays (in the same view) for each week, which contain the totals of the same fields just for that weekly time period. After attaching Socialcalc feeds to each of those page displays, I am able to reference those weekly totals in the master sheet to provide a comprehensive Weekly Sales Report.

However, I need to be able to filter these numbers by Salesperson, Venue, etc. And because these are page displays, I am unable to inherit the exposed filters for the master display. If I did attachment views then I could filter all of the data by the Master view exposed filters, but would be unable to reference the data from the attachment views in the Master view, because I cannot attach a feed to an attachment view.

Does this make any sense? And does anyone have any insights that might help me overcome this?

Thanks in advance.