SOLVED : Drag&drop to adjust geo-location? JOSM works best for me, after trial-and-error, GPXEV and GeoSetter are good alternatives

Past couple of days yielded way-off GPS-tracks, especially inner city. Wouldn’t have been problem when one could drop worst offenders in a web…er, drag to correct position. Google search offers suggestions, many of those for Apple, others discontinued or depending on IE (and some paid, where I don’t plan on paying for a way to correct something I’ll then contribute for free) ; then there’s the laborious option changing couple of digits in ExifTool, hope / see you hit a nail.

Least impractical, Basecamp imports pics, can move them around, but max. zoom too far out, pics clustered, hard to place.

Question : could forum members point to a sure-fire drag&drop way to adjust in the order of 200 pics w/o taking hours, please?

Looking forward, met vriendelijk groet, (Dutch for 'with friendly greeting),