Oracle Forms

HI All,

I need to customize a oracle Seaded form. Simply i need to change two labels in a canvas.
while i am changing it's not allowing me to change.
When i gone through the document i cam to know the following mentioned there....

Oracle Forms Developer allows referenced objects to be overridden in the local form. Oracle Forms Developer also does not normally provide any indication that an object is referenced unless you set a special environment variable (Registry setting for NT). Set the Overview of Coding Standards 1 – 9 environment variable (Registry setting) ORACLE_APPLICATIONS to TRUE before starting Oracle Forms Developer. This setting allows you to see the reference markers (little flags with an ”R” in them) on referenced objects so you can avoid changing referenced objects unintentionally. Any object referenced from the APPSTAND form must
never be changed.
Oracle Forms Developer allows referenced objects to be overridden in the local form. Any object referenced from
the APPSTAND form must never be changed.

So please suggest me how to change the label in the canvas.

Thanks,
Suresh P