RM 2.3.3 includes the new OLR feature.
To enable it for your event, you'll need to do 2 things. 1) Enable it on the Event 2) Setup your timing laptop to being able to connect to both your local network and the Internet.
I have started a couple of documents to help with #2.
For Windows, check out...
https://drive.google.com/open?id=1cDIiAvR2gqVffpeYQGIjgoxGmZrW4w9ADVG0wpHTvNY&authuser=2
For OSX, check out...
https://drive.google.com/open?id=12e_kOV7uDGcBZgwILekM_h998EkEB6lZ_sX-6iY2j80&authuser=2