While you are adding speakers to the mobile app, you can also link the speaker(s) you are adding to a session. This article lists the steps you can follow in order to link speakers to a session.
Step 1: Click '+' from Speaker Sessions
Click the + button next to the Speaker Session heading to link the speaker to a session. All the created sessions populate in the list as you click the + button.
Step 2: Select Session from the List
As the list populates, choose the desired session you want to link the speaker to.