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If you choose "Folders View" then in the Tests section (B) you will see just the Tests that are direct childs of the folder selected in the left side, within the Folders section (A). In this case you can only select Tests directly within the current selected folder.

On the other hand, if you prefer you can switch to a "Flat View";  if so, you'll see on the right side (Tests section) all the Tests that belong to that folder and related sub-folders, grouped by folder. Then you can apply a filter, if you want, select some of the Tests (no matter in which sub-folder . they're in) and do an operation for them.

Folder Actions

A folder can be selected by clicking on it. Once selected, you can perform context actions or use the icons available at the bottom of the folders' section.

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