SHORTCUTS
general shortcuts
click to zoom in at mouse position
double click close the zoom window
a add an annotation
c,k add a comment
esc to show this help screen

shortcuts with zoom window open
UP enlarge the zoom window
DOWN shrink the zoom window
+ / - to zoom in / out
d / h darken / light up zoom window
space / Leerzeichen reset lightning
m circle mark in zoom window
e generate .png Export from zoom window