How to freeze a video for a certain time

Hi!

Posted this in the IRC but I didn't get any response, so here my question in the IRC:

[13:45] hello, asked this question allready yesterday, but nobody responded. seems simple, but I don't find out how:
[13:45] 1. I want to cut a movie into two parts, then shift the second part 5secs to the right
[13:45] 2. now the gap between those two movies should be filled with the last frame of the first part
[13:46] -> so I can freeze the movie on a certain point for 5 seconds
[13:46] seems easy, right :-) ? who knows how?

Tried with freeze, but I didn't get what I want...

Tried it also this way, but didn't work:

1. Cut all video-tracks (have only video) into two parts
2. Move the second parts 5 seconds to the right
3. From the left parts cutted one frame
4. Wanted to stretch that frame until the begin of the second part
-> but then it didn't stretch just the one frame! The movie just went on on the stretched part????

Please, this must be easy, but I don't get it! :-(

Thanks!
Michael