Hello atrus619,
Thank you for contacting us!
Yes, you have it right, rotation is not yet supported on the BETA app version but we are aiming on having this feature in the future.
Right now you may use rotation but you would need to uninstall your BETA app driver and download the classic KEXT version driver
from here.
If you would change the driver, these two articles may come in handy:
1.
How to configure DisplayLink displays.
2.
Screen rotation option on MacOS X
If you would need any further assistance, feel free to contact us again.
Best regards,
Jakub