Vertical Profile

[Piper9t3]

Hi Tim
During flight the Vertical Profile button does not work and thus I am not able to view the Vertical Profile Review window?  I have a flight plan loaded and my Breadcrumb Trail activated in the Options/Users Aircraft Parameters.  I see me trail in the plan view during flight however cannot see it in vertical view.  Plan Elevation window works fine with DEM file installed.  Is the Vertical Review only available after flight is completed?
Thanks again for your help!
John

[tim arnot]

Yes, it's retrospective.