This mode helps finding problems in your map. It shows a small dialog window with the checks you wish to perform. Press <b>F4</b> in any classic mode to switch to this mode. Select the checks to perform and click the <b>Start Analysis</b> button. The problems that are found are displayed in a list. Click on of the problems to zoom in on the subject and show a description of the problem below the list. For some problems, buttons appear below the description that you can use to quickly fix the problem.