While in frontend, tracks are uploaded and imported in J!TrackGallery in one process.
Multiple tracks import is only offered in backend.
The tracks (Files) menu offers two link (upload / import) which in fact relates to 3 possibilities:
Upload: gpx and kml tracks are uploaded and saved in an import folder for later processing. The import folder is /images/jtrackgallery/uploaded_tracks/import
Import: gpx and kml tracks present in the import folder are moved to their final location /images/jtrackgallery/uploaded_tracks and registered in J!TrackGallery database. This allows for mass import of tracks.
When uploading tracks in backend, the import form has checked box to automatically import the track.
You must uncheck this box if you only want toi import multiple track and import them all together later.
You can also download tracks using your FTP client (Filezilla) to /images/jtrackgallery/uploaded_tracks/import
You will then have to 'import' them in J!TrackGallery using the corresponding backend menu.
Importing in J!TrackGallery relates to registering previously uploaded tracks in database.
Importing multiple tracks at once fasten the process. You can preselect all track parameters (categories, terrains…) which will be applied to the serie of tracks imported.