Customisation of EXIF data displayed at edited image base

I mostly take pictures during my travels and for me it is very important to have GPS information about where I took the photo and date and time taken (they give me an idea of how I moved).
These information are important for me. However, other photographers might deem important other data. Therefore, I request to have the ability to choose which EXIF information to display at the base of the edited photo.

In particular for GPS, of course it would be useful to have the ability to choose to show Latitude, Longitude or Altitude. However, it would be much better to have the additional possibility to show three mini icons or three triplet of letter that show whether of not GPS EXIT values are present in the photo. Like "Lat Lon Alt", eventually singularly greyed out when the related value is not present (and when you hover on Lat, for example, you see the actual number). Additionally, another icon that allows to open these coordinates (if present) to be opened in a browser, like you have now.

The very best, but this are other features, might be:

1. create a tool that shows where a picture, or a group of picture, is in the world map.
2. have the ability to place a picture on a map a picture that does not have EXIF GPS data, and have C1 retrieve this information from the map and write in the EXIF data of photo.
3. modify the existing EXIF GPS data of a picture. This is useful when you take pictures where GPS signal is temporary absent and your camera uses the last known position.