;;;;;; ibuffer-backward-filter-group ibuffer-forward-filter-group
;;;;;; ibuffer-toggle-filter-group ibuffer-mouse-toggle-filter-group
;;;;;; ibuffer-interactive-filter-by-mode ibuffer-mouse-filter-by-mode
;;;;;; ibuffer-backward-filter-group ibuffer-forward-filter-group
;;;;;; ibuffer-toggle-filter-group ibuffer-mouse-toggle-filter-group
;;;;;; ibuffer-interactive-filter-by-mode ibuffer-mouse-filter-by-mode