The buyer representation agreement opens from the presentation, once you are signed in as the presenting agent.
Open the presentationOREA Form 371, Buyer Designated Representation. Fill the terms directly on the agreement below (the blue boxes). The buyers then initial and sign on this device, and you sign last for eXp.
The buyer's name on the agreement and on Schedule A fills from here, and you can still edit it on the page. Blue = you type, yellow tags = initials and signatures collected next.