If no positions are available to select while you're pushing an order to an agency, it usually means the position mapping has not yet been configured.
Position mapping is required to match the positions in your account with the positions used by the agency. This setup is completed by our Support team and cannot be configured from your end.
To resolve this, please contact our Support team and let us know which agency you're trying to push the order to, along with the list of positions that need to be mapped. We'll configure the position mapping for you, and once it's complete, you'll be able to map the positions and push your order successfully.