^Thank you, 4wd. I picked up a copy of OpenShot.  :Thmbsup: Time to get on the ol' learning curve.

HOW COVID-19 KILLS--I'm a Surgeon--And Why We Can't Save You 34m 47s
This video is very informative, but unfortunately interlaced throughout with four-letter words.

Re: 'repeat forever'; Okay, now that I know how to 'find' this option, how do I 'select' it? When I click on that 'option', the 'Apply' word does not highlight itself to confirm the choice.

-holt (December 14, 2019, 02:51 PM)

Third image is where you can set a key shortcut for it, it's unassigned by default.

How do I add MPC-BE to my 'Open with' drop-down menu; all I show is VLC as an option.

-holt (December 14, 2019, 03:07 PM)

Same way you add any program you want to the Open With... menu:

• Right click the relevant file
• Choose Open With...
• If you don't see MPC-BE, click More apps
• If you don't see MPC-BE, scroll down to Look for another app on this PC
• Locate MPC-BE

-4wd (December 15, 2019, 04:31 PM)

I found this 'rotating galaxy' video,
4K Galaxy, Nebula Motion Background ,Milky Way, Free Video Background,
but it's rotating the wrong way (as countless comments point out). I searched duckduckgo on how to do it in avidemux; all I can find out is that -apparently- my later avidemux v.2.7.5 no longer has a 'reverse video' filter function/option, whereas earlier versions do.