You can perform as a brokerage using services from other experts; however, to do so you will need to create a second account as a client rather than an expert. You can set up your client/broker account here. When you are setting up this account you will need to use a different email address than you use for your expert account.
When performing as a brokerage you will be filling out applications for other experts' services. When doing this you will need to provide your information as the broker and your client's information as the client.
If you need to transfer money between your client/broker account and your expert account please contact us at firstname.lastname@example.org