i_j.loclNLD in a monospaced typeface

I’ve designed a monospaced typeface that includes i_j.loclNLD. Should I stick it into DLIG? If so, what’s the best way to set this up so that it only gets used for Dutch?

You can use the same ‘script’ and ‘language’ keyword as in the locl feature. Put it at the end otherwise all following substitutions will only be active in that setup.