Gantt adding multiple holders from serverlist option

Hi,is it possible to add multiple holders of one task from a select control in the lighbox,i need to be able to allocate one task to more than one user,kindly provide guidance

currently gantt does not have a multiselect control. You may try to integrate one from the dhtmlxScheduler.
Both components has the same structure of the lightbox, so integrating should cause big difficulties. Probably you’ll only need to change the host variable from ‘scheduler’ to ‘gantt’ … iselect.js … ditor.html

it was helpful,thanks