Page History

The Test Plan Board is a Test Plan-level test organization feature that allows you to organize Tests in a hierarchical way via in folders. Always keep in mind that each Test Plan has an associated (Test Plan) Board and that a Test can only belong to one folder within the Board. 

...

Tests can be selected by clicking on them. Multiple selection is possible by using the "Ctrl" key (on Windows) or the "Cmd" key (on OS X). The "shift" key can be used to select a list of Tests, starting with the currently selected one to the one clicked afterwards If you want to select more than one Test and the Tests are listed consecutively, use the "Shift" key to quickly select an entire group. Click the first Test in the list you want to select, hold down the "Shift" key, scroll down to the last Test you want and click it. This selects the first item, the last item and all items in between.

You can also filter the list of visible Tests to make it easier to pick the Tests you need.

...