Over-ride example: ```C++ StashGroup *group = stash_group_get_group("geany", "interface"); StashPref *pref = stash_group_get_pref_by_name(group, "warn_on_project_close"); if (group && pref) { stash_group_pref_set_override(pref, (gpointer) true); }
stash_group_pref_unset_override(pref); ```