Download the Solstice client to your device. Then when you want to share your screen to a Solstice-enabled display, open the Solstice app, enter the 4-digit code that appears on the monitor, and choose what you want to share.
If you have questions, use the following instructions to connect your PC to the Solstice-enabled monitor.
If you are using an Apple device, follow the instructions for Mac and iOS that appear on the screen.