Hello everyone!

So, I'm trying to develop an elgg mod.

I want to upload different types of files to different places or just tag/identify this files so I can display them in different pages, like one page for images, other for videos and another for musics. The pages (music, videos and images) are already created (blank),  but I don't know how to separate/tag nor how to get them separately.

If anybody could help me I would be very thankful