[MikeinKY]

Thanks for the reply. Your thoughts on the AOS actually led me to a solution. I picked up at Samsung Nexus 10 which is currently using the 4.2 AOS. Unfortunately, 4.2 (at least on the Nexus 10) did not appaer to provide any additional options for external monitors and it still forced a landscape mode when connected to one. However, it did solve another problem I was having with the Asus 700 which was related to the fact that the Asus hdmi output is not active until it senses an external monitor/tv. When attempting to connect multimple monitors via an active hdmi splitter, it would not sense an external monitor so no signal was sent out. The Samsung hdmi seems to always be active and I had no problem running the hdmi to multiple monitors via the active hdmi splitter. Now back to the original issue...I was able to locate a life-saving app called "Ultimate Rotation Control" which enables you to bypass system and app defaults for screen rotation. With that app I am able to lock the tablet in portrait mode when using MobileSheets. It still sends a landscape image out through the hdmi (understable since I can't remember the last time I saw someone hang their hd tv in portrait position) and that's okay since I'm using regular monitors for the other team members and the landscape image of the sheet music is large enough on those. Hope this helps someone else out their trying to do crazy things with MobileSheets.