Grass Valley Kayak HD v.6.9.3 - Manual (Page 450)

450 Kayak — User Manual
Section 7 — Sidepanel Menu Summaries
The X-Bar object in the menu Define Memo got the sub-entries pgm and
pst
. Thus, PGM sources and PST sources can be selected individually. The
states of both are stored but only the activated bus will be recalled.
Example:
If PGM is disabled during Recall, the PGM row of the selected M/E is not
affected by the snapshot recall (or timeline).
It is not recommended, to disable only one bus (PGM or PST) during Recall,
in case of timelines that are including background transitions.