set_use_subtitle

Sets whether to use the current value as the subtitle.

If you use a custom list item factory, you will need to give the row a name conversion expression with [property@ComboRow:expression].

If set to `TRUE`, you should not access [property@ActionRow:subtitle].

The subtitle is interpreted as Pango markup if [property@PreferencesRow:use-markup] is set to `TRUE`.

Parameters:

this	a combo row
use_subtitle	whether to use the current value as the subtitle