Column	Comment
Trial	Unique ID for trial
Action No.	"Meta-action number, within trial"
Case type	"Type of case (skin, etc.)"
Person	ID for participant
Start time (s)	"Start time of this part of meta-action, measured since beginning of trial (s)"
End time (s)	"End time of this part of meta-action, measured since beginning of trial (s)"
Magnification	Magnification at end of this part of meta-action
Detail dist (pixels)	Distance panned during this part of meta-action
Category x 4 (ToCHI revision)	Category of meta-action (see Table IV in paper)
Pan micro/macro	Indicates macro vs. micro movement for pan-only meta-actions
Macro type	Indicates whether macro pan-only meta-action involved panning within detail view (detail) or wider area (wide)
Zoom shape time	"Classification of this part of meta-action: max (during a local maximum of magnification), 7 secs (when participants kept the magnification constant for at least seven seconds), or ZUI (typical of a conventional zooming interface)"