how to assign id to lightbox select div?

Hi,

Is it possible to add id to different divs available in the lightbox?

Hello,
usually no.
The lightbox element and specific controls can be accessed using following methods
docs.dhtmlx.com/gantt/api__gantt … ction.html
docs.dhtmlx.com/gantt/api__gantt … htbox.html
technically you can assign ids to the elements dynamically, but the lightbox markup can be regenerated from code any time so it doesn’t seems as a good way.

Please describe your use case, why do you need an ids there?