How can I select all medias ?

[nicozerr]

In the manual, the screenshot shows that we can select all medias using a checkbox in the header: https://raw.githubusercontent.com/fabarea/media/master/Documentation/Intro-01.png

But on my project, I don't see it: http://prntscr.com/i4vld1 Where can I find it ?

TYPO3 8.7.9 Media 4.5.0 Vidi 2.6.0