The answer is to drag the tab from main window to your 2nd window on 2nd monitor, but the trick is to hold click and hover it above the + symbol on the other screen window for up to 2 seconds, you will then see the tab underneath move which means u can let go of left click now to drop it. Repeated test heaps of times, it works. nothing else works however

The answer is to drag the tab from main window to your 2nd window on 2nd monitor, but the trick is to hold click and hover it above the + symbol on the other screen window for up to 2 seconds, you will then see the tab underneath move which means u can let go of left click now to drop it. Repeated test heaps of times, it works. nothing else works however