Grass Valley 1200 Operation Manual - Manual (Page 146)

3-100
Section 3 — Controls & Menus
Key Border
Press the [KEY BORDER>] soft button to access the Key Border
position menu. Refer to Figure 3-51.
NOTE: You must have a BORDERLINE® option installed to have
key bordering capability.
Use the Key Border menu to change the horizontal and vertical
positions of the key border on Key 1, Key 2, or the DSK. This can
also be done using the original method with the pattern positioner
as described in the Model 1200 manual.