Re: How to physically drag/manipulate clips in timeline?

At the bottom left of the timeline you'll see a yellow arrow and a red arrow. Those are how you move things, the yellow arrow will splice the clip in where you drop it on top of another clip. The red arrow will override the current clip (Probably the style you are used to).

In order to cut the clip, you need to use the splice tool. I forget what its called exactly, but if you go to the fast menu below the video viewport, theres a fast menu button. Click that, and it'll bring up a menu, in that menu is a button for cutting. (Sorry I cant be more help with this, if you google fast menu you'll probably get a photo of it.)