Not sure what past history we inherited, but I am questioning the semantics of our key modifiers. My understanding is that the following is industry standard... OSX Windows Linux option alt alt cmd ctrl ctrl with Copy being the simplest example of this... cmd-c ctrl-c ctrl-c Supporting this view: * "option" and "alternative" are synonyms * "command" and "control" have similar meaning (e.g. in the army if you command someone, you control them) * Microsoft say so (https://support.microsoft.com/en-us/kb/970299) * Apple say so (https://support.apple.com/kb/PH18812?locale=en_US) and indeed marks its keyboards with "alt" and "option" on the same key ( http://www.apple.com/au/keyboard/) So examining this with KMLog setDebug.Transcript open. On OSX Pharo 50044 I get... option+arrowLeft --> [keystroke '<Opt-left>'] cmd+arrowLeft --> [keystroke '<Cmd-left>'] ctrl+arrowLeft --> OS changes screens but I am told that Windows gives... alt+arrowLeft --> [keystroke '<Cmd-left>'] ctrl+arrowLeft --> [keystroke '<Ctrl-left>'] when I believe Windows should be... alt+arrowLeft --> [keystroke '<Opt-left>'] ctrl+arrowLeft --> [keystroke '<Cmd-left>'] Part of the issue I think is that our keystroke mapping should be more abstract. When I was using Pharo on Windows, sometimes it felt like a second class citizen wrt key mappings, mapping ctrl-c to an apple-named <cmd-c>. Perhaps what we should see is: OSX... option+arrowLeft --> [keystroke '<Meta-left>'] cmd+arrowLeft --> [keystroke '<Hotkey-left>'] Windows... alt+arrowLeft --> [keystroke '<Meta-left>'] ctrl+arrowLeft --> [keystroke '<Hotkey-left>'] Otherwise there will always be the tension on windows that ctrl-c should generate [<keystroke '<Ctrl-c>] and we end up with definitions repetitively formed like... PharoShortcuts>>acceptShortcut ^ $s ctrl win | $s ctrl unix | $s command mac which opens the door for inconsistencies. We should only need to do something like... PharoShortcuts>>acceptShortcut ^ $s hotkey and leave it to the platform default or user preference the define what the hotkey actually is. A status line in the Keymap Browser could display which actual real keys map to <Hotkey> and <Meta>. What are you thoughts? cheers -ben