Need to develop an UI which will do the following

[#1]

Hi

--List all the qvw files available in the qlik server

--Allow users to create categories(more than 1 qvw grouped together) from the available list of qvw files

--Save the filters applied by the user on qvw files

--Export the entire category to a consolidated single pdf out put 

which would be the best option to do the above UC's? QMS API, workbench,JS api or NPrinting can any one suggest an approach to acheive the above functionalities in the qlikview?

Thank you,

tsb