Hi,
I am running the latest beta build and did not see this on the list of remaining issues for Windows 10. When I bring up the start menu on the active window (not the laptop screen) and try to start typing for a search, the menu just closes. I also cannot bring up Cortana on any monitor but the screen on the actual laptop.
It would be really cool to get these capabilities added in. As it is, I will probably have to start using the Windows taskbars (less than desirable) until they are.
Thanks for your time and help!