I just use Razer Synapse and create a macro for F11 (Full screen) to my mouse spare buttons - this is a quick bypass when you have tree style tabs and want to only see that!

The "Test" tooltip is annoying. Can you change it to "Hide tabs"? Thanks.

This does allow you to hide and unhide specific tabs.

It does not however allow you to globally hide all tabs (which to the authors credit is not something the claimed but seems to be a common confusion with this addon).