Permission for Screen Recording
macOS Catalina requires permission from the user for screen recording. Yam Pad records the screen of a Mac only to display it on an iOS device. Please allow screen recording in  > System Preferences > Security & Privacy > Privacy and restart Yam Pad.

Permission for Accessibility
For drawing with Apple Pencil or touch gestures to work, explicit allowance for Accessibility in  > System Preferences > Security & Privacy > Privacy is required:

Permission for Screen Recording
Yam Display records the screen of a Mac and displays it on your iPad/iPhone. macOS Catalina or later requires permission from user for screen recording. When Yam Display is launched for the first time, it will ask for the permission. Please allow Yam Display from the list and relaunch the app.

Installation of Yam Display driver and other permissions
macOS Catalina requires permissions for loading and touch gestures. Please refer to Yam Display for macOS Mojave for the details.

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.

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

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

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

Extend Display by AirPlay® for macOS High Sierra (10.13.4 ~ 10.13.6)
Yam Display uses AirPlay® to extend display for macOS High Sierra (10.13.4 ~ 10.13.6) due to an issue. There can be issues for older Macs (released before 2011) that do not support AirPlay mirroring. Resolutions are limited to horizontal ones. The issue was resolved in macOS Mojave in which full screen resolutions including portrait mode were restored.

Yam Display supports OS X 10.9 (Mavericks) or later.
Yam Air supports OS X 10.10 (Yosemite) or later.

For macOS High Sierra, please check out: Yam Display for macOS High Sierra.

When Yam Display is running with USB connected but still in ‘Wait for connection’ state, follow these steps. Try again after each step:

1. Restart Yam Display on your iPad/iPhone (running in the background).
2. Unplug USB cable and plug in again.
3. Check if your device is recognized by iTunes. If not, please check out this guide.

For some cases macOS Sierra does not recognize connected devices after reboot. Reconnecting USB cable may solve this issue.