Each subassembly added to an assembly is automatically associated with a named group within the assembly.
Subassembly groups manage the order in which subassemblies are processed during corridor modeling. The first time you add a subassembly to an assembly, the subassembly is added to the first group. When you add a second subassembly by attaching it to the first subassembly, the second subassembly also gets added to the first subassembly group. The next time you select an assembly baseline, a new subassembly group is automatically created and subsequent subassemblies added to the assembly are added that group.
Subassembly group names are automatically generated. Depending on the command settings, a subassembly group is named either for the side of the baseline that it is positioned, or a name template. You can also be prompted for a custom name each time a subassembly group is created. You can specify subassembly group naming options in the Edit Feature Settings - Subassembly dialog box.
The Construction tab of the Assembly Properties dialog box displays the subassembly groups for a given assembly. The location of the groups on this tab reflects the order in which the subassemblies are processed. The group of subassemblies located at the very top of the list is processed first, in top-to-bottom order. The group of subassemblies located directly beneath the top group is processed second, and so on.
You can change the order of subassembly groups by moving them up or down. However, you cannot reorder subassemblies within a group. If you delete subassemblies or subassembly groups using this tab, the subassemblies are deleted from the drawing.
Subassemblies that are not associated with assemblies (detached subassemblies and subassemblies created from polylines) are not associated with groups.