Yam Display for macOS Mojave.

FAQ

Installation of Yam Display driver
macOS Mojave requires explicit allowance for a newly installed 3rd party system extension. To complete the installation, please allow loading the extension in  > System Preferences > Security & Privacy > General and restart your Mac. The restart may take longer time than usual.
mojave_guide

For Touch Gestures
For touch gestures to work, explicit allowance for Accessibility in  > System Preferences > Security & Privacy > Privacy is required:
mojave_accessibility

Automation for Extend Display by AirPlay
In macOS Mojave, there is an option to use AirPlay for extending display:
mojave_airplay

You can automate using AirPlay by allowing Yam Display in  > System Preferences > Security & Privacy > Privacy > Automation:
mojave_automation