Simple enhancement or bug fixes that would make LMMS more complete

• Show when the volume clips https://github.com/LMMS/lmms/issues/1022#issuecomment-50107501
• Add scroll bar in instrument plugins sidebar to enable readability on small screens https://github.com/LMMS/lmms/issues/959
• Make the main toolbar one/two lines and/or some icons hide-able https://github.com/LMMS/lmms/issues/387
• Make the Piano Roll toolbar one/two lines and/or some icons hide-able https://github.com/LMMS/lmms/issues/64
• Add more "What is this" text, to make it easier for new users. The text should be short and informative. Short cuts are very useful to include.
• Option to add more than one FX channel at the time. https://github.com/LMMS/lmms/issues/1009
• Using arrow keys for previewing samples and presets https://github.com/LMMS/lmms/issues/871
• Ctrl + left-right key shortcut https://github.com/LMMS/lmms/issues/811
• Shift + up-down key shortcut https://github.com/LMMS/lmms/issues/810
• Search folders for .dll files https://github.com/LMMS/lmms/issues/856
• Humanize option. It could be achieved simply by using a lfo https://github.com/LMMS/lmms/issues/1165