You can delete POI files thay you do not need from the directory where they were loaded with POI loader software. Leave only file(s) that you need.
POI loader will delete removed files and reload files that you leave in the data directory. This works on all POI Loader supported Garmin GPS devices.
I have just loaded the BP Fuels POI file and now I cannot remove it. It shows under Custom Points. I have followed all the instructions and can add and remove other POI files. Any ideas? cheers Peter