I can find the BLUE BUTTON at the bottom
which is right below the SELECT PLAYER area,
and right above the white button INSERT INTO POST
which states: INSERT JW PLAYER
It does nothing in 1.7.1
does not insert the Player with ID # into the Post.
At least on the initial EXTERNAL MEDIA panel.
When inserting Library Media, insets the Media’s Name,
but not the Player Id [jwplayer mediaid=”46717″] into the post.
At least in my set-up.
Using 3.5 with a simple older modified Theme.
1.6.0 works just fine.
1.7.1 appears to have a disabled INSERT JW PLAYER button for me.