The Acrobat XI version before Acrobat XI Pro 2017 let the user drag the corner of the QAT (Quick Access Toolbar) so that it would expand to 2 or more lines. That way, the most-used icons would all be on the main screen without the insessant need to click on the 3 buttons to expand the options and see the icons .... Worse yet, if there are many icons, you have to press the down-arrow to get there. Yes, I understand that the icons can be 'moved up'.