I don't know if this is at all possible, but it would save me a lot of hassle.
What I would like to do, is create the same sidebar as I have on this page:
on all of the different source file pages.
I know it is possible to create a custom widget area for individual pages, but if I have to do it every time I create a new source file page, it will quickly become tiring (and clog up the widgets page).
The only solutions I can think of are to make it so that pages with a dynamic template applied don't use the "Sidebar Pages" widget area, or somehow tie a custom widget area to a specific dynamic template.
If this is at all possible (or if there is a really simple solution I've overlooked), it would be a huge help. :]