searchable field in structure web content

[mokhtar hatampoor, módosítva 12 év-val korábban]

1. when i create a structure i see a searchable field that i don't know where this is use.
2. is this possible that i add a field to article such as "sub titr" that this field searchable in articles without programming (in the other words, i want add some fields that can be searchable and showable in content)
thanks

[Paul ., módosítva 12 év-val korábban]

Indeed that's what it's meant for. You can specify for each field whether liferay should index it and thereby show it in the results in case of a match.
Set them as not searchable and they the values won't be searched.