You see a green rectangle surrounding the selected object (pattern, 
a group of patterns or a block), with small squares at the corners. 
These are called "handles". Initially the handles are set so the
rectangle fully encapsulates the object.

Touching and moving one of the handles will distort the object. 

You can move two handles by touching and dragging the line that
connects them.

Note that distorting the objects will not change the number of points
of the objects, it just moves them closer or farther from each other.
For example, a four-sided block remains four-sided, but the position of
the sides will change. Using Distort you can transform a rectangle to 
a paralellogram that was not possible using the standard editing functions
(width/height/rotation/scale/stretch).

Use the buttons on the left side to select another advanced tool.

<b>Reset Handles
Use this button after you moved the handles too far from the object,
to reset the encapsulating rectangle.

<b>Select
This button provides a shortcut to selecting another object to modify.
You can also use Select to reselect the same object in order to move
the handles closer to its distorted shape.

<b>Undo
Touch this button to undo the modifications by one step at a time.

<b>Finished
Touch this button when you are pleased with the modifications.

Touch the            button to return to the main Modify screen.
<img> 105  -32 data/images/buttons/screenleft.png

