Locations toolbar (in Files tab) cannot be hidden, pdf listing space reduced

Hello,

in the Acrobat app on iPad, on the "Files" tab, the "Locations" toolbar cannot be hidden anymore.

so, e.g. go to "on this iPad" option, and the PDFs are displayed on the right in a narrower space, which cannot be expanded like earlier. So, e.g. in the icons view, only 2 PDFs can be viewed per row,

instead of 4 pdfs per row earlier, so doubles the crolling to locate any pdf, while a static toolbar stays.

Previously, one could expand the space for the pdf icons using an expand checkbox, which is missing after the most recent update. Could you please give it back? 
Regards,

Jay