Your question is a little confusing and very vague. You say your question is about movie edit pro and then talk about loading into arranger of mpv15. What product are you actually asking about, and could you be more specific about what you mean by the clip shrinking?
Sorry for the confusion the software is movie edit pro 15 and when i preview the clip in the monitor, i can see the entire length but when i import the clip onto the timeline the clip is shortened and only about 75% is visable.
Now I get your question. Have a look at this screen shot and hopefully you will be able to get the view that you want. If not, come back and ask for clarification.