??? I am not sure if you understand the problem:
– you can create unlimited sidebars on Appearance – Sidebars. That works.
– you can add/choose any sidebar (standard or custom) to any 2 column page. That works, too.
However:
– if you created a page with template 2 sidebars (left+right, or 2 left or 2 right), then at the bottom of the page edit screen I can choose only 1 sidebar to add to the page. The other (always the right one) is fixed (the extra sidebar for 3 columns).
I don’t want the same right sidebar on every 3-column page! We should be able to choose both sidebars.
