Submitting a request is as simple as filling out a brief on your design portal.
How to:
Hit the 'create request' button
Fill out all the necessary information in the brief
Press submit
All done!
Tips:
Be sure to provide copy/text if you would like any to be included on your design
The more info, the easier it will be for your designers to achieve your vision without having to deal with many revisions
Always name your design something unique so that you and your team will be able to come back and refer to it later on