batch modification of GPS values with offset (i.e. altitude)

[toxicmag]

Dear users, dear team,

i read the recent threads related to "altitude" and i would like to promote e real gamechanger here as a feature request.

It should be quite easy to implement and there's not many software tools out there that could eliver this.

The feature: batch editing of GPS data

The background:
Modifying GPS values of a whole set of images by a sepcific value sometime is mandatory to adjust local differences.
Fot example the difference between geoid and ellipsoid height by a specific local value. So what the batch process should do is to add (or substract) a specific value in all the images (instead of placing a fix value to all of them).

This would add a very valuable tool to XnView which other software is missing.

Looking forward to your reply.

Alex