Responding to video comments
There is no option called a "comment back" but there are two ways to accomplish the same thing. This is how things work on a pc. It may be slightly different on a mobile device.
One is what I did above. I just wrote your username complete with the @ symbol, which does two things. One, it creates a hyperlink so anyone can click it and get to your homepage. Two, it sends you a notification that someone has mentioned you. Of course, it also indicates clearly to whom you are responding.
The second way is to directly quote someone:
To quote someone, hover your cursor over their comment and you will see an icon appear in the upper right of that box that looks like the speech bubble from a cartoon. Click that and their entire comment will appear in quotation marks in a new comment box. You rarely need to quote an entire post, so most of us then edit the quotation to include only what is necessary.
I hope that helps. If you need further instruction, ask your limberjack.
Dusty T., Northern California
As a musician, you have to keep one foot back in the past and one foot forward into the future.
-- Dizzy Gillespie
updated by @dusty-turtle: 09/29/21 11:36:08PM
You should be able to see or access a text box so that you can respond to them with your own comment right there after their comment.
Are you doing this on a desktop/laptop, or on a tablet/phone?
Those irritated by grain of sand best avoid beach.
-Strumelia proverb c.1990