Add "ScreenTip" field to the list presented from main menu Insert|Field...

Field Code Format: {SCREENTIP "DisplayText" "TipText"}

DisplayText and TipText may be literal text or the result of an embedded
field.

DisplayText is the "result" of the ScreenTip field.
TipText displays as a ScreenTip when mouse pointer rests on field.

The ScreenTip field would be useful, for example, for providing brief help
to the user of a template that includes fields for displaying Custom Document
Properties.


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