Custom Actions ? about contenteditor-plugin HOT 3 CLOSED

ContentTools.Tools.Columns = (function(_super) {
    __extends(Columns, _super);

    function Columns() {
        return columns.__super__.constructor.apply(this, arguments);
    }

    ContentTools.ToolShelf.stow(Columns, 'columns');
    Columns.label = 'Columns';
    Columns.icon = 'subheading5';
    Columns.tagName = 'columns';

    return Columns;

})(ContentTools.Tools.Heading);