Question about Arno Pro Font Terminal Forms

Hi there,

I have a question about Adobe Font's opentype features, particularly the with Arno Pro.

I am currently trying to make use of Arno Pro's  elegant terminal ending forms. It seems like the only way I can access them is through using the "Stylistic alternatives" opentype feature; but this just replaces all glyphs with terminal endings, which looks silly. Does anyone know of a way which I can use this glyphs for only terminal endings— i.e. at the end of a word? In other fonts, this feature is accessed through a "final forms" feature, but I cannot find this with Arno.

Regards,

Jacob.