How to assign a sidebar to these DWQ&A pages…

Hi,

For the following 3 pages, how can you assign a custom sidebar? At present it is showing the default (i.e. blog) side bar.

.com/questions shows the default blog sidebar 🙁
.com/questions/category/ shows the default blog sidebar 🙁
.com/questions/tag/ shows the default blog sidebar 🙁

The following 2 pages actually exist, so it is simple to set-up and assign a custom siderbar:
.com/questions-and-answers/ shows DWQ&A Widgets in the custom side bar 🙂
.com/questions-and-answers/ask-a-question/ shows DWQ&A Widgets in the custom side bar 🙂

So my question is: For consistency and user experience, how can I show (assign) the custom sidebar with DWQ&A widgets for the first 3 pages?

It seems odd to me to show different sidebars when a user is using a Q&A related pages.

Hope that makes sense?

with thanks, Scott