They (developers) modified the dialog to only show-up if you
have either a surface body model, or a mixed-mesh model. The
restraint type (immovable) applies to shells and beam nodes only
since they have dof's representing rotation (i.e., "fixed", and
"immovable" mean the same thing for solid elements since the nodes
are not formulated to rotate on solid elements). You can see the
Immovable option if you have a surface body or beams in your
assembly. RMB on "Fixtures", choose "Fixed Geometry...", and you
should see an option under the "Standard" fixture types labeled
"Immovable (no translation)". Hope this helps. Tony
They (developers) modified the dialog to only show-up if you have either a surface body model, or a mixed-mesh model. The restraint type (immovable) applies to shells and beam nodes only since they have dof's representing rotation (i.e., "fixed", and "immovable" mean the same thing for solid elements since the nodes are not formulated to rotate on solid elements). You can see the Immovable option if you have a surface body or beams in your assembly. RMB on "Fixtures", choose "Fixed Geometry...", and you should see an option under the "Standard" fixture types labeled "Immovable (no translation)". Hope this helps. Tony