How can I zoom in the curve editor of the timeline vertically? - Change the displayed range...

I created a keyframe animation. Now, the created curve is nigher than the displayed window in the curve editor of the timeline…I can’t find a way to “vertically” zoom out and see all my keyframes…
I can only see a range from -3 to 1, while my keyframes are somewhere at 5 maybe…

hold shift and scroll mouse wheel may help, as for the horziontal zoom hold ctrl instead :smiley:

What if i dont have a mousewheel?