As of V9.8, at parts, which were found via Geometric search (3D) and then overtaken into the Part comparison, there, in the Tabular Compare dialog section, the geometric similarity is overtaken and displayed as well.

If more searches are performed one after another, the percent values of old searches are displayed in brackets. At mouseover on an old value the respective information is displayed.

Values from an old search are displayed in brackets.

Configuration:

Under $CADENAS_USER/pdatamgr.cfg, you can set, whether the geometric similarity shall be displayed.

[PARTCOMPARESETTINGS] 
DisplayGeoDistances=1