Yes, that's what i've been doing and i needed a finite element bellow (be it hinged or not) in order to use Caesar's XJ Rating Analysis feature. It is a neat tool to get the movements of a bellow and compare with the Vendor's allowables, but it requires a finite element to do so.

Should I then just ignore the Axial displacement due to Lateral in the report as a result of lateral differences due to angular rotation and just consider the Axial Displacement due to Rotation? Because the lateral is contributing majority of the Total Axial Movements of the bellow in the Caesar results.