Hello Geert,
here is a brief update on the topic.
The feature is now also described in the documentation.
Use on smartphones is explicitly excluded there.
Set location directly on the map using the context menu:
docs.joomla-5.visforms.vi-solutions.de/e...ing-the-context-menu
On the PC, setting the coordinates directly on the map works in all common browsers.
Unfortunately, it doesn't work at all on smartphones.
For the sake of clarity, I have created a new issue for development in the wish list:
Issue [VF-1133] Forum: Location Field: Add support for direct location setting in the map on mobile phones
When we release the new feature, you will be explicitly informed about the release here in the topic.
Unfortunately, there is no approximate timetable for this.
Kind Regards, Ingmar