Grass Valley Aurora Edit v.7.0 - Manual (Page 235)

2. You can change the duration at any point, including cutting the graphic.
Changing the duration does not change the behavior of the graphic. The graphic
has a play in and a play out and everything in between will be animated on-air
according to the duration defined for this graphic.
NOTE: Be aware that there is no minimum duration defined for a VizRT
graphic. You could trim the graphic short enough so you would never see the
graphic play out.
3. You may also preview the graphic with your video after your entire sequence has
been edited and rendered.
08 April 2010 Aurora Edit User Guide 235
Titling and Graphics