Your video is very informative even though I did not get the same result as yours yet, so I must have made some mistake in the middle. I will retry to see what happens.
So far I am able to return to the previous screen without entity assignment using Temp Tabs but cannot stay on the Menu screen.
In your video, I see that once you finished the definition of all the rules and action, upon going back to POS(11:08), you are already in the Menu ordering screen. How did you stay on the Menu by default? This is the kind of POS screen my community is familiar with. I would prefer to build the command buttons, say, “New Ticket” here, so I will scrap my Food Court Entity screen.
Since my installation is a food court, there is no need for me go back to the Entity Screen with “All Tables” “Customer Search” … and choose one more time what entity next order is supposed to be in. In my case, it is always Food Court and it is always New Ticket and only once a while jumping out to check on other stuff.
BTW, I learn the convention here is that there is a terminology distinction between Tickets and Orders, so I will change the name of my button to New Tickets.