FCS Express 5 adds the following new plot types and enhancements:

 

Pie Charts.
Scatter with Regression Plots.
Shading Based On Density for color dot and dot plots.
Improved Bar plots with Drag and Drop functionality.
Overlays can now be reordered including the base overlay.
Improved visualization and color blending on all plot types.
Histogram overlay transparency.
New color palettes for Contour and Density plots.
Plot Themes
Emphasize low frequency populations.
Data Grid drag and drop functionality improve when creating your own custom data.
Plot names now editable and displayed in Navigation windows, batch processing, and tokens.
Live updating gates and statistics.
Spectral plots support multiple overlays.
Display statistic used in heat map on heat map axis.
New options for axis lines and tickmarks.