SMPTE dont work

I love this software very much! its good and best part is thats its free. But sometimes there’s a few things i dont understand and i can’t find any help on Youtube or when i use Google.

My problem is:
When i go to File ¨- Open Other - Color Bars can’t i drag it to the timeline

It works for me, but you cannot drag directly from the Open Other dialog to the Timeline. That is just not how it works. When you click OK, it opens in the Source player. Make sure the Source tab is selected. Now, drag from the Source player to the Timeline. That works for me. If it does not work for you, specify your OS and Shotcut version.