Hello,
There is a way to adjust the time after you selected it, but gantt doesn’t have an option to do hide months, days and hours in the lightbox.
You can use built-in events for the lightbox and the DOM element for the select options and hide them manually. We don’t have a ready solution, though I have an idea how it might look like: snippet.dhtmlx.com/a236d08d0
You can try to use these event handlers and commands in addition to what you find in the snippet:
[code]gantt.attachEvent(“onBeforeLightbox”, function(id) {
gantt.resetLightbox(); // clear all changes, new lightbox element will be generated after that
return true;
});