You can create multiple campaigns targeted on one website / outstream placement. Each campaign can have its individual ad source. In this way you can build demand for your outstream inventory from as many SSPs as you like. Thus increase you fillrate and ad revenue.
Remember that you can also connect you adserver for direct selling or use our adserving. Besides the standard VAST or vpaid url we are also able to handle Teads.tv script.
In order to increase outstream revenue even more you can use campaign priority settings in campaign -> rules tab. This allows you to put higher average CPM ad sources into higher priority.