I have a map on which I have marked arrows and numbers relating to restaurants shown in a separate list. I created this in Skitch and saved to Evernote. I now need to update this and have easily managed to add new arrows and numbers but I need to delete some of the original numbers and change some. I have tried in Evernote and in Skitch but it just shows the tools for adding annotations. I have tried double clicking on a number as I read that it would show some blue dots round it and then it would be possible to amend, but this does not happen. What am I doing wrong?