Sceditor has a lot of buttons .. but they are deacticvated in mybb.
To reactivate Youtube button...we need to do this in 3 steps :
1. open bbcodes_sceditor.js in javascript folder and search and comment this lines (with //)
PHP Code:
$.sceditor.command
.remove('table').remove('subscript').remove('superscript').remove('youtube').remove('ltr').remove('rtl');
$.sceditor.plugins.bbcode.bbcode
.remove('table').remove('tr').remove('th').remove('td').remove('sub').remove('sup').remove('youtube').remove('ltr').remove('rtl');
2. open codebuttons template and add youtube to toolbar
3. Add youtube mycode like this :
Title : youtube
Regular Expression : \[youtube\](.*?)\[/youtube\]
Replacement :
Code:
<iframe width="560" height="315" src="//www.youtube.com/embed/$1" frameborder="0" allowfullscreen></iframe>that's all.