All of them active at the same time?

There is no way to break out the mini-screens to another monitor though it is in the feature requests (not saying they'll ever do it).

For now though have you tried these workarounds?

If the input isn't going to be used in the current production Left-click on it's title to shrink it to a small column. Shrinking unused inputs allows other inputs that were off-screen to be pulled on-screen.

You can also set the size of each input on Display tab of the vMix Settings, it's the "Input Size" option. There you can make the size of each input smaller which will also allow more of them to visible at the same time.

You don't seem to understand what I was asking, but anyway, I know how to adjust the input screens ..I was using vMix from the year it was launched....I actually teach friends how to setup and use vMix....The only thing I don't know about vMix is how to rewrite it, or edit the GUI to my likings....and if I could, I would create my own GUI.....I use vMix almost every day...live streaming, closed-circuit,(especially during election campaigns for wide screen.....was the first person using vMix for this in my country) or just mixing videos and record for later posting....all I was hoping that someone has a script that can place the inputs on another scree for quick view....May have to ask John Mahoney from Streaming Alchemy....he may be able to help me.

Hello. A workaround to do this is by using web controller and shortcuts by changing the display in shortcut from default to thumbnail. The up-coming v27 version is support live preview of any input in low res but you can see them in your pc mon. So a way to see all the inputs is to make shortcuts (that will do something to this input that you need for example cut or fade) and see the inputs at 127.0.0.1:8088 in your pc monitor like the way we see them at elgato streamdeck