Rule nr 25 add it like this:

var buttons = [[`bold`, `italic`, `underline`, `link`],[`orderedlist`, `unorderedlist`], [`more`, `image`, `video`, `html`]];

Options:

["html"], ["bold", "italic", "underline", "strikethrough", "|", "subscript", "superscript"], ["increasefontsize", "decreasefontsize"], ["orderedlist", "unorderedlist"], ["indent", "outdent"], ["justifyleft", "justifycenter", "justifyright"], ["link", "unlink", "image", "horizontalrule"], ["p", "h1", "h2", "h3", "h4", "h5", "h6"], ["cut", "copy", "paste"]

However i noticed that you have to allow custom html to make these options to work.

I also noticed that not every option is working even when you add them.

i.e.  i added unlink to it but that one doesn't appear in the textarea in forum.

      i also added html to it and that one appears in forum but not in the Note plugin.

If somebody knows how this can be solved, i would be happy too.