If you are performing a dynamic analysis using Multiframe4D, you may wish to include or ignore the masses of the members in the frame and the effect they will have on the inertia of the frame.  The Member Mass command from the Frame menu allows you to ignore or include the effect of member mass in dynamic analysis.

To specify whether member mass is to be included

§    Select the member or members

§    Choose Member Masses  from the Frame menu

§    Click Ignore or Include as appropriate