TMM (0) - >SETS not toggle!< Map Markers (tmm 1 shows ALL, tmm 0 clears ALL)(tmm 0 will clear any existing locations previously found). DO not use this if you wish to preserve current marker status set. There is NO way to revert to original status. If you do tmm 0, followed by tmm 1,0,1, with no quotes, it will blank the map followed by making all 'black' markers appear without fast travel. Fun if you like to see where it all is, with the extra bonus of being able to discover as you go. Try it.
Si je comprends bien ça dit qu'en gros tu n'as plus qu'à revisiter la carte puisque "TMM 0" est irréversible.