[galaxy-dev] questions about uploading and working with directories

Dear all, I have installed a Galaxy instance on my local server and it runs well. However I have some problems with directories. I want to create a workflow that takes a directory of files (e.g. 10) and repeatedly working on all files and then output another set of files (10) which are piped into the next tool. I searched over this forum, but couldn't find the solution (maybe I missed something). Does Galaxy directly support tools which work on a whole directory? Any suggestions/comments on this would be much appreciated! Regards, Jemma