You can assign keyboard shortcuts on the Mac too, it's just a little less intuitive --
- Go to: Apple menu -> System Preferences -> Keyboard -> Shortcuts -> App Shortcuts.
- Then click "+" at the bottom of the right pane, select "JMP 14.app" (or whatever) for application
- For "Menu Title", put in the menu you want to assign, e.g. for Select Matching Cells under Rows, enter "Rows->Row Selection->Select Matching Cells"
- Click in the Keyboard Shortcut field and type the keyboard shortcut you want to use
The OS will automatically show you the shortcut in the menu now.
When I was doing it, I couldn't find "Show Data Table" in the menus for some reason, but if you click on the "Help" menu and type in a few words into the search box, then down-arrow down through the results, it'll show you where in the menus a command lives. Pretty cool.