We strongly recommend that you use two computers for your BrightTALK Pro webinar.
This will allow you to display the BrightTALK presenter screen on the 1st computer and your screen share on the 2nd computer.
Your presenter screen could be an iPad. Your screen share could be a laptop/desktop.
It is possible to run a BrightTALK Pro webinar on a single computer. However, you will need to have 2 screens in order to avoid revealing the BrightTALK presenter screen to your audience. You only want you audience members to see your screen share.