Here ya go! To change the brush size of Lightroom’s Adjustment Brush; the Left Bracket key on your keyboard makes the brush size smaller; the right bracket makes it largerTo reset any slider to its default setting, double-click on the slider’s nub or its name. To make your thumbnails in the Library Module larger, press +. To make them smaller press –. To reset all your Adjustment Brush sliders back to zero, all at once, double-click directly on the word “Effects” near the top of the panel. To side all the panels, press Shift-Tab. To enter Full-Screen mode, press the letter...