kvstore, inputlookup and time-bounds

I'm trying to set up a kvstore lookup where the results from inputlookup can be filtered using the regular time-pickers available on the web GUI or with the latest= and earliest= modifiers. $ collections.conf [testkv] enforceTypes = true field.action = string field.ts = time $ transforms.conf [testkv] external_type = kvstore fields_list = action, ts time_field = ts ;time_format = %s.%3N ;time_format = %s.%Q The ts field contains a UNIX epoch with milliseconds so 10+3 digits. Regardless what I select "Last 15 minutes", "Last 4 hours" I always get the whole kvstore content. First of all, is that doable in general and, if yes, any ideas on what's wrong? :)