can you please, specify what do you mean under in a new way? Perhaps, you can give more details or provide a screenshot from some site, where you see this option.
Thank you in advance
thank you for this explanation.
We can advise you the next plan. Use the function export/import of markers.
1. Export all the markers from each map to CSV file
2. Make one global map
3. In each file (CSV) change the id of the map and insert the id of this global map
4. Import each file one by one.