Yes! You will also be able to make a more detailed statement outlining your claim, and submit that a bit later in the process once the other party agrees to arbitrate.
You can edit the amount you are seeking up until 4 days before your hearing (for document-only arbitrations you have until the initial evidence portal closes). This can be done on the first page, upon logging into www.fairclaims.com, next to the dispute amount.
For Consumer claims, please note this may impact pricing.