I have never made a lens-profile because my cameras and lenses are ones Adobe makes profiles for.
If the Coolpix P7700 is a very new camera perhaps Adobe hasn’t gotten around to making a lens profile. If it has been out for a while, perhaps they have different priorities as they do more with less employees because of layoffs over the past few years due to the stagnant world economy. In other words they may have had more people to use to make lens profiles in the past and don’t, now. But this would just be my speculation.
Those who’ve made lens profiles say it is not difficult but it will take quite a few shots to cover the zoom range. You might try making one for whatever focal-length you use most of the time or a focal-length that needs the most correction and see how well it works before you do some of the other focal-length ranges. You can read in the LPC manual what is involved—moving a checkboard target around the field-of-view until one distance, focal-length and aperture are covered and then changing things and doing it, again. Doing different focal-lengths is the most important, followed by normal and closeup distances, where changing the aperture may not make that much difference since Chromatic Aberration is taken care of outside of the lens-profile process, nowadays.