Section Box for Revit allows you to incrementally move each of the six sectioning planes (Top, Bottom, Front, Back, Left and Right), giving you an immediate visual of your sectioning. You can also select a point in your model to locate any of the six planes. Sectioning can also be done by Level or by Grid Lines.
Note: This app uses a custom installer (and not the standard App Store installer).
Section by Level and Section by Grids is not available.