ion of another collection - collections cannot be nested).</p>

				<p>Button collections can be useful for grouping functionality of button types - for example one collection could provide file export options, another table
				editing and a third column visibility controls.</p>

				<p>This simple example shows a collection with two custom buttons. These buttons simply toggle the visibility of the final two columns in the table (if you require
				full column visibility control, check out the <a href="//d