List of the Zoom- & Panning functions of a graphic (chart):
Zoom
left mousekey -> rectangle (from top/left to bottom/right)
Zoom rectangle
left mousekey -> rectangle (from bottom/right to top/left)
UNDO Zoom
left mousekey + STRG
only X Zoom
left mousekey + SHIFT
only Y Zoom
mousewheel rotate up
Zoom OUT at mousecursor
mousewheel rotate down
Zoom IN at mousecursor
mousewheel rotate + STRG
Zoom x
mousewheel rotate + SHIFT
Zoom y
Zoom from center
Pan
pressed mousewheel
X / Y panning
pressed mousewheel + STRG
X panning
pressed mousewheel + SHIFT
Y panning
Zoom & Pan
pressed mousewheel + mousewheel rotate
X / Y panning & Zoom at Mouse
pressed mousewheel + mousewheel rotate + STRG
X panning & X Zoom at Mouse
pressed mousewheel + mousewheel rotate + SHIFT
Y panning & Y Zoom at Mouse