I have a prism application already in production.
I need to create a new module in this application.The module can either exist on not exist in the application depending on the configuration file.
This module view should be dispalyed in a region already existing. The view should only be visible when the module is loaded.
Problem: the existing screen has a region showing 2 tab items from 2 different modules. Now the new view should be part of the first tab and it gives the user the option to select whether to view the previous info or the new info from this new module.
I am stuck and dont know how I am going to show these checkboxes when the new module is loaded and hide it when it is not. Where do I put this logic?

Current scenario:

Very vague images to define what i meant?
Thanks for all your help 🙂
After a lot of RND i figure it out.
I have created a two tabcontrol regions one for the main tab and the other for the child tab.
on the child tab i have return style to display tabitem only if item.count is more then 1 as suggested by mark.
and i have put this code in my existing module.