Tektronix Grass Valley 3000 - Manual (Page 112)

3-4
Section 3 — Switcher Concepts
Auto Delegation
Some of the switcher subpanels are delegated to other subpanels
under conditional control of the operator or system. This feature
is called “auto delegation.” The effect of auto delegation is that
pressing a button on one subpanel may activate the related
controls on another subpanel. For example, the single Chroma
Keyer subpanel is used for controlling all Chroma Keyers, and is
activated by pressing the
CHR KEY button on one of the M/E
Keyer subpanels.
The switcher also delegates certain menus to be displayed when
specific buttons on the subpanels are double-pressed ( also known
as a DPOP – Double Press Operation). (The second press must
occur within a predetermined amount of time.)
Subpanel and Menu delegation are fully described in the Control
Panel Description section of the Operation Reference manual.