Thanks for contributing to our forum. We do not currently offer a tool that would allow you to upload your consignors in bulk, so you would need to enter the details for each of your consignors into our system individually.
I will share your comments in this regard with our Product Management team though, and we will take them into consideration when planning future site updates.
If you have any other questions regarding our service, you can always contact our Customer Support team directly from under the “Help” tab on our site. We appreciate the feedback!