So in our office people will open a wiki page and wait an hour or so before saving there edits. The problem being is that someone else will come in and edit it before the other edit is saved and change it, and when the first guy saves the second guys edits will lost. What we are intrested in primarily is if we can get a plug in to see if some one else starts editing while we are. If that is not possible then we are intrested in preventing two editors at once.