Before you can create a Syndicate, you need to create a Captain profile. Click on the "Create" button and add a Captain name and avatar image.
Tip: Your Captain name needs to be different than your account username.
The next time you click on the "Create" tab you will be taken to the list of open pools, where you can select which pool to create a Syndicate ticket in. You can then make your selections, choose the stake per line as when playing solo and click "Continue". The final step is to add your contribution to the Syndicate, which must be between 10% and 50% of the overall ticket cost.
Tip: You can top up your initial contribution any time while the Syndicate ticket is still available to fund but you can never exceed a total of 50% of the overall ticket cost.