Hi,
According to the Hypermesh User's Guide: while it is possible to organize components into more than one assembly, it is not recommended. Shown below is the direct quote from the guide.
'Components can be organized into more than one assembly. Therefore, components are not mutually exclusive to an assembly. To organize a component into more than one assembly drag and drop with the control key depressed. In general it is not recommended to organize components into multiple assemblies if it can be avoided.'
Can anyone go into depth why it would not be recommended? What are the drawbacks? It seems like a good way to create iterations of a design by including/excluding one or two components between assemblies.