Quite a few users have asked for this capability. In our next release, expected by end of this week, Trisul will support an easy way to bulk import and export labels.
In the meantime, if you are comfortable with scripting - you can insert them manually using SQL. The mappings are stored in the file
(That big number is a GUID represents IPv6 Hosts)
You can write INSERT statements like
INSERT INTO "KEYS" VALUES('C1CA0000111100002222000033330000','securev6.gvt.org',NULL);
You have to translate the IPv6 addresses like fe80::690e:6478:a712:c42f into the Trisul Key format yourself which is a full expansion of the IPv6 address with the : removed and uppercased FE80000000000000690E6478A712C2F
You can give this a try or just wait for a couple of days, I will post back a message on this forum when the feature is available.