Just fiddle with the program for a little bit and you'll get it.
There are some file types that are not natively supported, so that's that.
I'll add a few helpful tips.
Select a bunch of things and press "G" to group them so move and get cut as one. Audio/Video for individual files are pregrouped.
Pressing "S" cuts the file, the delete key will, as it suggests, delete what you select.
It's really basic, just fiddle with it.
If you would like help, tell us what your problem is and we'll do our best to help.i know how to use it i need help with something more technical and i just need someone who can take time out to help me