Once you enter the code, if you haven't joined before it will ask you to download the app, click Download App.
The app will then show up in your downloads, once it is finished, double-click the app.
You will then see the Application in your downloads
5. Right-click the application and then click Open
It will then alert that it may be malicious, click Open
After you have clicked Open, click the Apple icon in the top-left corner, then click System Preferences.
8. Click Privacy & Security, click the padlock in the bottom-left corner, enter in your Mac password.
9. Go to Screen Recording and turn on GZD Helpdesk Client. Note - If GZD Helpdesk Client isn't there, click the + button at the bottom and browse to your downloads and double-click the GZDHelpdeskClient application you opened earlier.