To quickly fix the location of an observation, select one or more observations, and automatically generate a location overlapping the locations of these observations.
1 observation selected --> take its location.
2 observations selected, or more --> disc overlapping the locations of these observations.
The selection of the other observations could be done by entering observation reference numbers or by making easy the selection on the map of one previous observation and one next observation. Ideally, the observer needs to the find and select the 1st previous observation and the 1st next observation whose locations are correct.
This would be vey useful when we have a long sequence of observations, half of them with correct locations, half of them with wrong locations.