I have Dropbox plus account and am running a photo editing website where a logged in user can upload and order a photo and his unique order id is generated along with this order and let's suppose a case where I want my specific user to upload his photos now in my Dropbox account from my website , for which I have already deployed a 'file request ' feature where I can normally see his photos in my dropbox folder where I see user name as prefix with a file name , but what if I want to see whenever any specific user clicks on my dropbox generated link the 'file request' windows opens and his order id should be autofilled in 'What are you requesting ?' window so that whenever this folder is created it should be labaled as that user Order Id number which means I want to pass that user's order id value in 'What are you requesting ?' so that it will create that folder with a unique order id for example order12345