As a user, I can see all the Tests within a given folder and sub-folders in the right-side of the Test Repository

As a user, I can see all the Tests within a given folder and sub-folders in the right-side of the Test Repository.

For this, the user should be able to switch from the traditional view where he only sees the direct child Tests on the right-side pane, to a flatten view of all Tests that belong to that folder and related sub-folders.

Whenever using the flattened view:

• Tests cannot be ranked
• Tests appear grouped by folder (the order should respect the rank within the folder)

 In the right pane view, it should possible to filter Tests using the already provided filtering mechanism, thus allowing to do multi-selection and contextual operations.