The Component View Header displays a filter text entry box to help find components in the display, the name of the character that rigging is being displayed for, and a quick Export All button to run all exports setup with the Exporter tool.
The filter field will only display components that match the filter.
If there is a single word in the filter it will search for that word in all group names and component names, sides, and regions.
If there 2 words in the filter the first word will search for all components where the first word is in the side, and the second word will search for all components where the second word is in the region.
Any additional words after 2 will be ignored.
"ik" - Will list all IK components, as well as any control with the letters 'ik' in the group, side, or region of the component.
"left leg" - Will list all components where "left" is in the component's side, and "leg" is in the component's region.