Program parameters can be modified numerically, textually and graphically. (See Modifying parameters.) There are two edit modes in which to modify a program:
When a parameter is modified, its background colour changes to yellow to indicate it has been modified. The yellow background reverts to white when the modified parameter value is written to the controller or saved to a file.
In live edit, it may be difficult to see the background colour changing as the live edit operation can occur rapidly.
