Adobe 65009963 Scripting Manual page 59

JavaScript Reference
Type
Floating-point; read/write.
CompItem workAreaStart attribute
a pp .p r o j e c t .i te m (i nd e x) .workAre aSta rt
Description
The time when the Composition work area begins, in seconds.
Type
Floating-point; read/write.
CompItem object
59
59