hi All i have jumped right in and stated changing the map of my locality, total newbie thinking that the bit i am changing would be for my map which i require , Am i right in thinking that i am changing the original ? I dont think i should be doing that ....right? How do i get a map that i can add to as my own for personal use , even more importantley how do i get the original back to before i started thanks vincent

hi All i have jumped right in and stated changing the map of my locality, total newbie thinking that the bit i am changing would be for my map which i require , Am i right in thinking that i am changing the original ? I dont think i should be doing that ....right? How do i get a map that i can add to as my own for personal use , even more importantley how do i get the original back to before i started thanks vincent