Attention! This help describes only hotkeys from default settings file - Default.keys.txt

Main

Ctrl + H   change hotkeys set
F2   shows hot keys help
F5   refresh image or files list
F10   call menu
Ctrl + L   change interface language
Alt + X   exit

Zooming

PageUp   zoom in
PageDown   zoom out
Home   set real scale
End   fit to screen

Rotation

F7   to rotate photo to the left by 90°
F8   to rotate photo to the right by 90°
Ctrl + F7   to rotate photo to the left by 5°
Ctrl + F8   to rotate photo to the right by 5°
Alt + F7   to rotate photo to the left by 90° and save to comment a rotation macro
Alt + F8   to rotate photo to the right by 90° and save to comment a rotation macro

Navigation

Esc   hide or to show navigator window
Tab   switch focus to navigator window or from navigator window
"-"   go to previous photo
"+"   go to next photo

Comments

SpaceBar   show or hide comment
F4   turn on or turn off sound comments
Ctrl + T   run Notepad to edit text file with comment to photo
Ctrl + Del   delete text file with comment to photo
Shift + T   run Notepad to edit text file with comment to folder
Shift + Del   delete text file with comment to folder
Ctrl + C   setup comment color
Shift + C   setup comment shadow color
Ctrl + R   begin or finish to setup comment rectangle
Ctrl + Ins   copy comment text to the clipboard

Comment font

Ctrl + F   show choose font dialog
Ctrl + B   apply or cancel bold style
Ctrl + I   apply or cancel italic style
Ctrl + U   apply or cancel underline style
Ctrl + ","(comma)   increase font size by 2 units
Ctrl + "."(dot)   decrease font size by 2 units

Slideshow

F12   begin small slideshow
F9   begin or stop total slideshow
Pause   pause or continue total slideshow
"*"   accelerate a slideshow
"/"   slow down a slideshow

Service

Ins   turn on or turn off thumbnails mode
 run second instance of programm
F3   turn on or turn off background music
Alt + Z   switch IntelliMouse wheel button use between zooming and navigation
Alt + S   switch the mode of saving/not saving the scale of an image to be applied to the next photo
Alt + C   setup background color
Ctrl + O   run the external program with the current file
Ctrl + E   run Explorer with the current folder
Ctrl + S   to create a script for the currently running total slideshow
Ctrl + F1   copy all macros and tags to the clipboard
Ctrl + D   run Notepad to edit settings file attached to the current photo
Ctrl + Backspace   delete settings file attached to the current photo
Shift + D   run Notepad to edit settings file in the current folder
Shift + Backspace   delete settings file in the current folder
 hide mouse cursor - dock it to the right screen bound

Mouse

Left double click - hide or to show navigator window.
Side double click on IntelliMouse - switch IntelliMouse wheel button use between zooming and navigation.
Right click in the main window call main menu, rigth click in the navigator window call navigator context menu.