Hi
As ypou say....
Click the file in the media list window and it will appear in the CLIP PREVIEW PANE.
Now set the IN/OUT points followed by the GREEN DOWN ARROW.
This places the selected area of the clip between the IN/OUT points onto the timeline.
The Clip preview pane changes to the Sequence preview pane. (In version 3.79)
You cannot now select another part of the clip on display as the Green arrow has disappeared (as you are displaying the Sequence preview pane.
So..To add further selections from the clip... Click the clip once more in the Media list and the CLIP PREVIEW PANE will reappear exactly as it did at the start. The only difference now is that the IN/OUT pointers are still where you left them. ***
Slide the markers to isolate a new section of the clip and click the GREEN DOWN ARROW again to add the new selected area to the timeline.
*** You could click the Green Down Arrow immediately to add the same slice of clip to the sequence and repeat the above steps as many times as you wish. So you could show (for example) a dog seemingly repeatingly bouncing a ball on its nose....you get the idea.
Note: For any selection, the IN marker (Red) must be to the left of the OUT marker (Blue)...You can't finish the selection before you have started it. :-)
If VP does not behave as described....you should be able to move the IN/OUT markers to any new position irrespective of the place they reappear at when the clip is reselected... then there would appear to be something wrong.
Nat