When a user clicks a line or drags through a series of lines in a list field,
the lines are highlighted. A script can detect the highlighted lines and take
appropriate action.
The Field Info dialog box has two new options to make list fields possible:
* Auto Select
* Multiple Lines.
To create a list field, select the Auto Select, Don't Wrap, and Lock Text
options in the Field Info dialog box. To allow the user to highlight more than
one line at a time, you also select the Multiple Lines options.
(The user highlights more than one line either by dragging through several
lines or by highlighting one or more lines and then shift-clicking elsewhere in
the field.)
This article was adapted from the HyperCard 2.2 New Features stack.