To
update a variable that was previously inserted, proceed as follows:
In the text field at the bottom, place the text cursor inside the
variable you would like to update, that is, inside the pair of square brackets [
] that mark the variable; the fields in the top portion of the property editor
automatically synchronize with the contents of the variable.
Adjust the argument values for
the variable in the text fields at the right, or select a new variable
(possibly in another group) as desired.
Once you are satisfied with the changes, click the
Update variable
button.