The extension allows you to use your own custom BBCode / PMCode tags in ExpressionEngine. Add new tags one per row in settings. To the left, enter BBCode tag without brackets, to the right - corresponding HTML (separate opening and closing tags with pipe | ) Example: If you want to add [spoiler][/spoiler] tag, enter: at the left spoiler at the right <span class="spoiler" onlick="this.style.backgroundColor='transparent';">|</span>