User`s manual
V 1   P R O F E S S I O N A L   5 . 7  
 51
Erasing 
Here are a set of tools for removing drawings from the screen. 
Removes the last thing you drew. You have up to 99 “levels of undo,” where 
you can undo up to 99 drawn objects in the order that you drew them. 
When you use the 
Undo
 button, the button will split into two parts: 
Undo
 and 
Redo
. Each time you click 
Undo
, the system will remove 
another  drawn  object  from  the  screen,  proceeding  in  order  from 
most recent back.  Clicking 
Redo
 will bring the most recently undone object 
back  again.    If  you 
Undo
  something,  then  draw  something  new,  the  new 
drawing replaces the original drawing. 
The 
Clear
 button removes all drawing from the video screen. 
Clear
 may also 
be un-done and re-done with the 
Undo
 and 
Redo
 functions. 
To use the 
Erase
  tool,  you may use either  the right mouse button  (except 
with the 
Slide
 tool), or the flip-side of a drawing tablet pen. 
Snapshot 
The 
Snapshot
 button saves what you’ve drawn on a video.  When you next 
open the video, the drawing you saved will be recalled automatically.  The 
Undo
 and 
Redo
 commands work with the recalled drawing. It’s possible to use snapshot with a 
“clear” video. When you next open the video, any drawing will be removed. 
If you open a video which has not yet had the 
Snapshot
 tool used on it, any drawing 
currently on the video window will remain.  
Line Styles 
The width buttons determines the width (or thickness) of the 
pen used by the majority of drawing tools.  
The  arrow  buttons  choose  whether  or  not  one  or  two 
arrowheads are added to the ends of your lines and angles. 
The selected color  button  determines the  color of  the  pen  used  by the majority  of 
drawing tools. If your mouse or pen has a third or “middle” button, it may be used to 
cycle through the color palette.  










