Stay on Main stream (Solved)

Hello
I have a DS-7608NI-E2 NVR and I would like to be able to keep the images on the multi screen in main stream mode. If I set them to main stream as soon as I go to a different view and go back to multi view they default to sub stream.
I have tried to find out if this is possible with no luck.
cameras are DS-2CD2041G1

Thanks for any assistance
Calvin