Controlling multiple pivot table filters with one filter.

Is it possible to have a combo or list box control filters on multiple pivot tables and allow for more than one field to be selected?

For example, i have a month filter on several different pivot tables. I want to change just one filter, and have the rest of the month filters change to match my selection. But i also want to be able to select more than one month at a time.

I've attached an example file.

There's 7 pivot tables on one sheet (pivottable1-7), and i want one master month filter that will control the month filter on all of the pivot tables.

I'm at a loss on how to accomplish this, and any insight would be greatly appreciated.

Here's the file.

Well I guess this is impossible