Navigation: Arrow keys to navigate, Home/End for row bounds, Ctrl+Home/End for grid bounds.

Sorting: Click or press Enter/Space on a sortable column header to cycle sort direction.

Row Selection: Click checkboxes or press Space to select/deselect rows.

Editing: Press Enter or F2 on an editable cell (Role/Status, indicated by pen icon) to edit. Role uses combobox with autocomplete, Status uses select dropdown. Escape to cancel.