Same way I've used here, I rewrite Add Font Awesome button to the editor and update Font awesome to version 4.6. (634 icons).

Demo

How to set up?

1. Installing the JavaScript

Go to Admin Panel > Modules > JavaScript codes management and create a new script with the following settings:

Title: Font Awesome icons
Placement: In all the pages

Code:

jQuery(function($) {

    'use strict';

    if (!$.sceditor) {
        return;
    }


    var button_title = 'Font Awesome Icons',
        fa_list = '\uf26e \uf042 \uf170 \uf037 \uf039 \uf036 \uf038 \uf270 \uf0f9 \uf2a3 \uf13d \uf17b \uf209 \uf103 \uf100 \uf101 \uf102 \uf107 \uf104 \uf105 \uf106 \uf179 \uf187 \uf1fe \uf0ab \uf0a8 \uf01a \uf190 \uf18e \uf01b \uf0a9 \uf0aa \uf063 \uf060 \uf061 \uf062 \uf047 \uf0b2 \uf07e \uf07d \uf2a2 \uf069 \uf1fa \uf29e \uf1b9 \uf04a \uf24e \uf05e \uf19c \uf080 \uf02a \uf0c9 \uf244 \uf243 \uf242 \uf241 \uf240 \uf236 \uf0fc \uf1b4 \uf1b5 \uf0f3 \uf0a2 \uf1f6 \uf1f7 \uf206 \uf1e5 \uf1fd \uf171 \uf172 \uf15a \uf27e \uf29d \uf293 \uf294 \uf032 \uf0e7 \uf1e2 \uf02d \uf02e \uf097 \uf2a1 \uf0b1 \uf188 \uf1ad \uf0f7 \uf0a1 \uf140 \uf207 \uf20d \uf1ba \uf1ec \uf073 \uf274 \uf272 \uf133 \uf271 \uf273 \uf030 \uf083 \uf0d7 \uf0d9 \uf0da \uf150 \uf191 \uf152 \uf151 \uf0d8 \uf218 \uf217 \uf20a \uf1f3 \uf24c \uf1f2 \uf24b \uf1f1 \uf1f4 \uf1f5 \uf1f0 \uf0a3 \uf0c1 \uf127 \uf00c \uf058 \uf05d \uf14a \uf046 \uf13a \uf137 \uf138 \uf139 \uf078 \uf053 \uf054 \uf077 \uf1ae \uf268 \uf111 \uf10c \uf1ce \uf1db \uf0ea \uf017 \uf24d \uf00d \uf0c2 \uf0ed \uf0ee \uf157 \uf121 \uf126 \uf1cb \uf284 \uf0f4 \uf013 \uf085 \uf0db \uf075 \uf0e5 \uf27a \uf27b \uf086 \uf0e6 \uf14e \uf066 \uf20e \uf26d \uf0c5 \uf1f9 \uf25e \uf09d \uf283 \uf125 \uf05b \uf13c \uf1b2 \uf1b3 \uf0c4 \uf0f5 \uf0e4 \uf210 \uf1c0 \uf2a4 \uf03b \uf1a5 \uf108 \uf1bd \uf219 \uf1a6 \uf155 \uf192 \uf019 \uf17d \uf16b \uf1a9 \uf282 \uf044 \uf052 \uf141 \uf142 \uf1d1 \uf0e0 \uf003 \uf199 \uf299 \uf12d \uf153 \uf0ec \uf12a \uf06a \uf071 \uf065 \uf23e \uf08e \uf14c \uf06e \uf070 \uf1fb \uf2b4 \uf09a \uf230 \uf082 \uf049 \uf050 \uf1ac \uf09e \uf182 \uf0fb \uf15b \uf1c6 \uf1c7 \uf1c9 \uf1c3 \uf1c5 \uf1c8 \uf016 \uf1c1 \uf1c4 \uf15c \uf0f6 \uf1c2 \uf008 \uf0b0 \uf06d \uf134 \uf269 \uf2b0 \uf024 \uf11e \uf11d \uf0c3 \uf16e \uf0c7 \uf07b \uf114 \uf07c \uf115 \uf031 \uf280 \uf286 \uf211 \uf04e \uf180 \uf119 \uf1e3 \uf11b \uf0e3 \uf154 \uf22d \uf265 \uf260 \uf261 \uf06b \uf1d3 \uf1d2 \uf09b \uf113 \uf092 \uf296 \uf184 \uf000 \uf2a5 \uf2a6 \uf0ac \uf1a0 \uf0d5 \uf2b3 \uf0d4 \uf1ee \uf19d \uf0c0 \uf0fd \uf1d4 \uf255 \uf258 \uf0a7 \uf0a5 \uf0a4 \uf0a6 \uf256 \uf25b \uf25a \uf257 \uf259 \uf292 \uf0a0 \uf1dc \uf025 \uf004 \uf08a \uf21e \uf1da \uf015 \uf0f8 \uf254 \uf251 \uf252 \uf253 \uf250 \uf27c \uf13b \uf246 \uf20b \uf03e \uf01c \uf03c \uf275 \uf129 \uf05a \uf156 \uf16d \uf26b \uf224 \uf208 \uf033 \uf1aa \uf1cc \uf084 \uf11c \uf159 \uf1ab \uf109 \uf202 \uf203 \uf06c \uf212 \uf094 \uf149 \uf148 \uf1cd \uf0eb \uf201 \uf0e1 \uf08c \uf17c \uf03a \uf022 \uf0cb \uf0ca \uf124 \uf023 \uf175 \uf177 \uf178 \uf176 \uf2a8 \uf0d0 \uf076 \uf064 \uf112 \uf122 \uf183 \uf279 \uf041 \uf278 \uf276 \uf277 \uf222 \uf227 \uf229 \uf22b \uf22a \uf136 \uf20c \uf23a \uf0fa \uf11a \uf223 \uf130 \uf131 \uf068 \uf056 \uf146 \uf147 \uf289 \uf10b \uf285 \uf0d6 \uf186 \uf21c \uf245 \uf001 \uf22c \uf1ea \uf247 \uf248 \uf263 \uf264 \uf23d \uf19b \uf26a \uf23c \uf18c \uf1fc \uf1d8 \uf1d9 \uf0c6 \uf1dd \uf04c \uf28b \uf28c \uf1b0 \uf1ed \uf040 \uf14b \uf295 \uf095 \uf098 \uf200 \uf2ae \uf1a8 \uf1a7 \uf0d2 \uf231 \uf0d3 \uf072 \uf04b \uf144 \uf01d \uf1e6 \uf067 \uf055 \uf0fe \uf196 \uf011 \uf02f \uf288 \uf12e \uf1d6 \uf029 \uf128 \uf059 \uf29c \uf10d \uf10e \uf1d0 \uf074 \uf1b8 \uf1a1 \uf281 \uf1a2 \uf021 \uf25d \uf18b \uf01e \uf079 \uf018 \uf135 \uf0e2 \uf158 \uf143 \uf267 \uf28a \uf002 \uf010 \uf00e \uf213 \uf233 \uf1e0 \uf1e1 \uf14d \uf045 \uf132 \uf21a \uf214 \uf290 \uf291 \uf07a \uf090 \uf2a7 \uf08b \uf012 \uf215 \uf0e8 \uf216 \uf17e \uf198 \uf1de \uf1e7 \uf118 \uf2ab \uf2ac \uf2ad \uf0dc \uf15d \uf15e \uf160 \uf161 \uf0de \uf0dd \uf162 \uf163 \uf1be \uf197 \uf110 \uf1b1 \uf1bc \uf0c8 \uf096 \uf18d \uf16c \uf005 \uf089 \uf123 \uf006 \uf1b6 \uf1b7 \uf048 \uf051 \uf0f1 \uf249 \uf24a \uf04d \uf28d \uf28e \uf21d \uf0cc \uf1a4 \uf1a3 \uf12c \uf239 \uf0f2 \uf185 \uf12b \uf0ce \uf10a \uf02b \uf02c \uf0ae \uf26c \uf1d5 \uf120 \uf034 \uf035 \uf00a \uf009 \uf00b \uf2b2 \uf08d \uf165 \uf088 \uf087 \uf164 \uf145 \uf057 \uf05c \uf043 \uf204 \uf205 \uf25c \uf238 \uf225 \uf1f8 \uf014 \uf1bb \uf181 \uf262 \uf091 \uf0d1 \uf195 \uf1e4 \uf173 \uf174 \uf1e8 \uf099 \uf081 \uf0e9 \uf0cd \uf29a \uf09c \uf13e \uf093 \uf287 \uf007 \uf0f0 \uf234 \uf21b \uf235 \uf221 \uf226 \uf228 \uf237 \uf2a9 \uf2aa \uf03d \uf27d \uf194 \uf1ca \uf189 \uf2a0 \uf027 \uf026 \uf028 \uf1d7 \uf18a \uf232 \uf193 \uf29b \uf1eb \uf266 \uf17a \uf19a \uf297 \uf298 \uf0ad \uf168 \uf169 \uf23b \uf19e \uf1e9 \uf2b1 \uf167 \uf16a \uf166'.split(' '),


        listLength = fa_list.length,
        index = 0,
        disable = false,
        $win = $(window),
        addResizeEvent;

    function createList($wrap) {
        disable = true;

        var stop = index + 100;

        if (stop > listLength) {
            stop = listLength;
        }

        for (index; index < stop; index++) {
            $('<i>', {
                'class': 'fa',
                text: fa_list[index]
            }).appendTo($wrap);
        }

        index = stop;
        disable = false;
    }

    function updatePosition($wrap, caller) {
        var callerLeft = caller.offset().left,
            winWidth = $win.width(),
            customStyle = {
                top: caller.offset().top,
                marginTop: caller.outerHeight()
            };

        if (callerLeft + 220 > winWidth) {
            customStyle.left = 'auto';
            customStyle.right = 0;
        } else {
            customStyle.left = callerLeft;
            customStyle.right = 'auto';
        }
        $wrap.css(customStyle);
    }

    $(function() {
        $('.sceditor-container iframe').contents().find('head').append($('<link>', {
            href: 'http://maxcdn.bootstrapcdn.com/font-awesome/4.6.2/css/font-awesome.min.css',
            rel: 'stylesheet',
            type: 'text/css'
        }));
    });

    // create sceditor button and drop down
    $.sceditor.command.set('fontawesome', {

        awesome: function(editor, caller, callback) {

            var $wrap = $('.sceditor-fontawesome'),
                closeDropDown = editor.closeDropDown;

            if (!$wrap.length) {

                closeDropDown();
                editor.closeDropDown = function() {
                    closeDropDown.apply(closeDropDown, arguments);
                    if ($wrap.is(":visible")) {
                        $wrap.hide();
                    }
                };

                $wrap = $('<div>', {
                    'class': 'sceditor-dropdown sceditor-fontawesome'
                }).click(function(e) {
                    e.stopPropagation();
                });
                $wrap.appendTo('body');

                createList($wrap);
                $wrap.scrollTop(0);

                $wrap.on('click', '.fa', function(e) {
                    callback(this.textContent);
                    if (!e.ctrlKey) {
                        editor.closeDropDown();
                    }
                });

                $wrap.scroll(function() {
                    if (disable) {
                        return false;
                    }
                    if (index >= fa_list.length) {
                        return false;
                    }
                    if ($wrap.scrollTop() + 250 + 50 < $wrap[0].scrollHeight) {
                        return false;
                    }
                    createList($wrap);
                });

            } else {

                if ($wrap.is(":hidden")) {
                    editor.closeDropDown();
                    $wrap.show();
                } else {
                    editor.closeDropDown();
                }

            }

            updatePosition($wrap, caller);
            if (!addResizeEvent) {
                addResizeEvent = true;
                $win.resize(function() {
                    updatePosition($wrap, caller);
                });
            }

        },

        // wysiwyg
        exec: function(caller) {
            var editor = this;
            $.sceditor.command.get('fontawesome').awesome(editor, caller, function(icon) {
                editor.insert('&nbsp;[font=FontAwesome]' + icon + '[/font]&nbsp;', '', true, true, true);
            });
        },

        // source
        txtExec: function(caller) {
            var editor = this;
            $.sceditor.command.get('fontawesome').awesome(editor, caller, function(icon) {
                editor.insert(' [font=FontAwesome]' + icon + '[/font] ', '');
            });
        },

        tooltip: button_title
    });

    toolbar = toolbar.replace(/date,/, 'fontawesome,date,'); // add the button to the toolbar
});

Save the script.

2. Installing the Style

Go to Administration Panel > Display > Colors > CSS stylesheet and paste the following style rules:

Code:

.sceditor-container textarea{font-family:Roboto,arial,sans-serif,FontAwesome!important}
.sceditor-button-fontawesome div{background:url(http://i19.servimg.com/u/f19/19/06/98/92/fa-f10.png)!important}
.sceditor-fontawesome{width:220px;height:250px;overflow-y:auto}
.sceditor-fontawesome .fa{color:#333;font-size:20px;text-align:center;cursor:pointer;padding:3px 0;width:20%}
.sceditor-fontawesome .fa:hover{color:#666}

Note

Hold Ctrl to select multiple icons at once.

If you haven't used Font Awesome icons, or are using an older version (< 4.6.), please install (or update) the following way.

Goto ACP >> Display >> General >> overall_header, find:

Code: {CSS}

and added below it (or replace the old version), the code:

Code:

<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.6.2/css/font-awesome.min.css" rel="stylesheet" type="text/css" />

Thank for share and I like it

Is there a reason why some of the icons are doubled? I noticed in the JavaScript there are similar icon codes.

\uf080 \uf080

SLGray wrote:Is there a reason why some of the icons are doubled?  I noticed in the JavaScript there are similar icon codes.

\uf080 \uf080

Funny i was going to ask the same thing LOL

Thanks for feedback. I wrote the script to get them automatically. Duplicate icons because I did not remove alias icons.

Code:

// https://fortawesome.github.io/Font-Awesome/cheatsheet/

var iconNodes = document.querySelectorAll('#wrap > .container .text-muted:last-child'),
arr = [];
[].forEach.call(iconNodes, function(icon) {
   icon = icon.textContent.replace(/^\[&#x(.+)\;\]$/, '\\u$1');
   if(arr.indexOf(icon) !== -1) return; // remove duplicate
     arr.push(icon);
});
arr = JSON.stringify(arr).slice(3, -2).replace(/"\,"\\/g, ' ');
console.log(arr);

Zzbaivong wrote:Thanks for feedback. I wrote the script to get them automatically. Duplicate icons because I did not remove alias icons.

Code:

// https://fortawesome.github.io/Font-Awesome/cheatsheet/

var iconNodes = document.querySelectorAll('#wrap > .container .text-muted:last-child'),
arr = [];
[].forEach.call(iconNodes, function(icon) {
   icon = icon.textContent.replace(/^\[&#x(.+)\;\]$/, '\\u$1');
   if(arr.indexOf(icon) !== -1) return; // remove duplicate
     arr.push(icon);
});
arr = JSON.stringify(arr).slice(3, -2).replace(/"\,"\\/g, ' ');
console.log(arr);

Where does this need to go, or have you edited the code in the first post?

I've updated the first post.
That is the code to get a list of icons for

Code: fa_list

. To use it:
Copy code >> go to Font Awesome cheatsheet >> F12 (Ctrl-Shift-I) >> Console >> Paste code >> Enter

Ok.  You say there is 809, but it looks like there is more than 809 on this page:  https://fortawesome.github.io/Font-Awesome/cheatsheet/ .

I forgot to edit the number of icons. 
After removing the duplicate icons, left 605 icons.

Could this be updated to work with version 5.0.6?