Let's take a look at how to post a youtube video to the forum here. Follow along and this will be pretty easy, I hope! Enjoy.
First off you either need to select a new thread or reply to a post. The instructions here will go the reply route.
You will need to select
"Go Advanced":
Next you will click on the YouTube symbol in the tool bar, see the black square:
That will bring up the
YT in brackets, now from the address of the video you want to embed, select the portion of code after the = and copy it. Note the red square in the address bar.
Paste that piece of code between the brackets and it should look like this:
Now you've done it, click on
Submit Reply, or
Preview Post. You should see your video now embedded into the thread or post.