If your DASHBOARD Installer stops and you get a message that it is from an unidentified developer, preventing you from continuing, you can manually allow the installation. From your APPLE  menu at the top left of your screen, select “System Settings”. Find the “Privacy & Security” option, and click on that. You should see a panel on the right and scroll until you see the notice about the 'Kubota Market Installer” and click “Open Anyway”. You'll be asked for your password, and then another confirmation. Do both and the DASHBOARD installer should now open up, ready to go.