Sorry, I guess I need to restate my question more clearly.
I have imported a video in the Video 1 timeline. I want to select a certain part from that video and paste it in Video 2. So let's say I want to select from 0:10 to 0:30 and copy that selection. How can I do that?
I think I figured it out though. I used the Razor Tool to cut certain parts from the video and then paste them into Video 2.
Commendable that you tried this approach.
However, I get the feeling you may need some basic education with video editing. I suggest you either get some formal education, or start reading the manual/help file and watch tutorials.
I have to agree with Harm. The operation you're asking about is very basic, and pretty well covered by learning how to use the program.
Definitely read the Help file. All of it. From start to finish.