If a FFlex body is selected as a source body for G-Manager, Rigid, FFlex, and RFlex body can be converted. When the target body is Rigid body, three methods are supported to convert FFlex body.
•Convert to Rigid Body (Internally Meshed FFlex Only)
•Convert to Rigid Shell
•Swap using CAD Data File

Figure 1 FFlex è Rigid: Convert to Rigid Shell / Convert to Rigid Body (Internally Meshed FFlex Only) / Swap using CAD Data File Methods