okay now i know what you mean.
you have to start the first programmed led at physical led17?.

physically the first led connected on the strip to data is also LED 1 in programming.
if you want to change this then u use input position option,
the only thing this does is to refer to the first programmed LED but not the physical LED, the physical LED is stil there ( first 16 of them) and they go behind in the counting of the program, so become the end led's.
the blacklist option is the best thing to achieve that you only want to use some particular part of the strip!
but then YES, the led effect will not lid the blacklisted led's and only start at led 17 and END" at led 114
the only thing you can do:
Hyperion doesn't know how much led's there are physically, it only knows because you tell the program the hardware ledcount.
you can try to increase the hardware ledcount by 32 and then still blacklist the leds you don't want and use the input position on led 17
try that, i have no more idea's to share.
Looks like the feature doesn't exist but someone found a hacky way to make it happen
so use this trick, alter the Json file and OFFset the first led by 16.
then shorten the total physical led count by 16 > 114 in total then ( empty/0 led's is also counted as leds in the program. )
this way you don't have to blacklist led's or make a gap. 
and update us !

starts at led 17 now.
good luck!