Tampermonkey

// ==UserScript==
// @name    CalcMaster
// @author  Danny Engelman  
// @namespace  http://ViewMaster365.com/
// @version    0.1
// @description  Patch SP EditColumn area, bigger size, strings on new line
// @match      https://*/*FldEdit.aspx*
// @copyright  2012+, You
// @require  http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js
// @require  https://gist.github.com/raw/2625891/waitForKeyElements.js
// @grant    GM_addStyle
// ==/UserScript==
waitForKeyElements ( '#onetidIODefTextValue1' , function(){
    //attach bookmarklet code to page and trigger execute
    var VM365_CalcMasterDirectory='[YOUR PATH HERE]';

    var jsCode = document.createElement('script'); 
    jsCode.setAttribute('src', VM365_CalcMasterDirectory + 'VM365_CalcMaster.js'  );
    document.body.appendChild(jsCode);
} );