Looking for a connector word between sentences where the second sentence gives more detail to the first

A connection that does not break the flow but necessitates a means of "selection" of "protocol" is the use of a relative pronoun (introducing a relative clause); the construction allowing that is "the latter of which", but as can be seen in this ngram, its use has never stopped decreasing and is nowadays not very important; nevertheless, as this page will show, it is commonly used in modern scholarly literature.

(example) There was an Upper, a Lower, and a Western India, the latter of which is now Persia-Iran. The countries now named Thibet, Mongolia, and Great

• In the cli, the keywords relevant to ldaps are 'ssl-connection' and 'protocol', the latter of which, if set to 'ldaps' or 'starttls', automatically enables the former.