Mass release - select all option

When I want to clean up my release fields it gets a bit tedious having to click all the little checkboxes to select which pokemon to mass release. It'd be helpful having a "select all" option for this menu :)

It is by design to not be too easy. If "Mass release" and "Mass move" behaved in the same way, how easy do you think it would be to accidentally release when you thought you were moving stuff? To help things along, however, you are able to click anywhere within the dotted area to select the checkbox (no need for precision accuracy) and if you are on a computer (or tablet with keyboard) then you can just click the first and use Tab, Space to select the next, and the next...

Alright, I understand. Thanks for taking the time to reply :) And the tab + space method should help me out quite a bit!