Working with hotkeys or keyboard shortcuts is one way to save time on your Mac. It is much faster to perform typical operations with one or two taps on the keyboard than by searching for the desired action in the application menu or in the contextual list of actions.
♥ BY TOPIC: Hotkeys for macOS everyone should know.
You can find out any shortcut (keyboard shortcut) by looking at its command in the application menu. To the right of it, a keyboard shortcut will be indicated for a quick command call.
Another more convenient way to find out all the combinations is offered by the utility CheatSheet… Program with a long hold on the button Command (⌘) will list all possible combinations for the active application. It is enough to start the program and it will “hang” in the background waiting for a call.
The application does not display icons in the dock or system menu and does not have its own interface. The utility is configured when it is called in any of the programs. In the lower right corner of the command window there will be a menu with options CheatSheet (gear icon), in which you can set the time interval after which the program window will be called up, as well as enable the automatic launch of the application when macOS starts.
IN CheatSheet it is possible to quickly print a list of commands on a connected printer. Unfortunately, you cannot set another button to call the program.
For the first launch CheatSheet need to go to MacOS settings and go to the item “Protection and safety “, on the tab “Confidentiality” select the line “Universal access”…
It is necessary to enable the mode of changing the parameters (in the lower left corner, click on the “lock” and enter the administrator password) and check the box opposite the application.
Download CheatSheet for free from the developer’s site