Last year I found John Zeman's Collapsible Metadata Viewer II
I liked his app because it was a good starting point for me to learn about HTML and JS coding.
I have changed the tags from Canon to Nikon and also made some cosmetic changes.
Althogh I have never finished implementing all my ideas I am posting it here,
because maybe some other Nikon photografer finds it usefull enough to use it as basis for his own ideas.
What the app can do:
You have a Collapsible Metadata Viewer with a thumbnail and a lot of tags shown.
You can open BingMaps, OSM or other Maps with the location marked.
You can Copy/Paste group of tags from one picture to others.
(This feature should be used with care, because I can not take any responsibility that it's working correct!)
What's not working:
You cannot copy coordinates from one picture to others.
(This code is still buggy, but I'm not able to find the bug)
Included is a resource file with english/german translation.
How to install this App:
Please read the IMatch Help how to install apps on your system, here is one example.
Copy it to the following path
C:\ProgramData\photools.com\IMatch5\apppanel\user\<your name>\NikonMetadataViewer
If your path has another number of subdirectories, you might have to update the following line in viewer.htm
<script src="../../../lib/imatch_app.js" type="text/javascript"></script>
Since it's my first App I know that there are still many bugs in it.
If you find any correction, feel free to post it here.
Warning: I cannot give any warranty that it's working correct, so you are using it at your own risk!
Walter