I'm on an android phone.
On flicker, request desktop page, computer version, or whatever the NOT 'Mobile' option is called in your browser. Then it should give the row of stuff below pic on right, find the goofy looking arrow.
Here I broke the script for an image. bbcode, select all, copy, paste
{url=https://flic.kr/p/WLyL7k]{img]https://farm5.staticflickr.com/4364/35947583263_048461b9b1_z.jpg[/img][/url]{url=https://flic.kr/p/WLyL7k]Brass Track Pins[/url] by {url=https://www.flickr.com/photos/154116633@N07/]jim delveau[/url], on Flickr
Out of all that, you only need
{Img]https://farm5.staticflickr.com/4364/35947583263_048461b9b1_z.jpg[/img]
I'll have to do more research about video embed, i don't know how to do that, or if its possible with the forum software. I still haven't made a youtube account to need to know
It's no problem, some guy with a lathe helped me out

, pay it forward to the community with stuff i know how to do...