That is really impressive but I could not make it work in my instence. I insert your server side code into a Script Include and called it through onCellEdit client script with Ajax, but this is not working. Do you have the code for the Client script ...
Guys, this is the solution for that issue:
function timelineDialog() { ScriptLoader.getScripts('/scripts/classes/GlideModalFormSetWidth.js', function() { var sysID = g_form.getUniqueValue(); // get the sys_id value from the change requ...