Hi elton
Zoom effect in 6.10
With NO restraint set , all eight handles are active. The top and side handles enable you to change the AR of the dotted rectangle whilst the corner handles enable you to retain the AR that you have set in this way.
If you set one of the AR in the Restraints list only the side handles will be active and these will resize the rectangle retaining the the selected AR.
In either case the re-sized dotted rectangle (whatever its AR) can grabbed at any point with the mouse cursor and be moved by dragging it to a new position within the frame.
Note VP is constantly evolving and the help files don't always keep pace.
In 2012 you were probably using version 3.xx.or thereabouts. The vpj files were constructed in a different way in the earlier versions and probably explains why they don't work correctly in 6.10. If you have added a zoom effect as well as a sharpen effect it can take a bit of time to render the cache files. Check that the green bar under the clip preview has completed before adding or doing further editing to the clip as each time it will restart. I use an old Vista machine and applying those changes to a 25 second clip it takes around a minute for the effects to complete. ?
However whatever difficulty you come across (even something really simple) post it here and someone will usually answer.
Nat.