How do I undo changes?
How do I undo changes to marker location and uncertainty extent?
You can almost always undo your last change in the BioGeomancer workbench. If you
want to undo "deleting marker" or "deleting all other markers", you will see a yellow box
appear in the upper right hand corner of the workbench after completing a command which
has an "undo" link on it. Clicking on that link will return the application to the state it was
in before the command was carried out.