Project for the web - holiday calendar

Hi!

On project for the web i've created a calendar template from a "calendar resource" and assigned them a 08:00 AM - 17:00 PM GMT+1 working hour

Holiday are "non working day" in this calendar (summer and winter holiday)

Is there a way to let the plan's PM to manage his collaborator holiday without admin access to project admin dashboard?

Otherways every time that a users go on holiday i should go on his resourse and modify his working day

Thanks!