I would consider making the guarding a config. One showing the extra parts and one not showing the extra parts. Then bring in the guarding with the confing you want to show in the main assembly.
Thanks for reply,
there is no necessity , just need one guarding in main assembly, We can not delete the other guarding which is supressed in sub assembly as there are many relations given to retain the position with respect to guarding. so any option to remove that guarding without loosing the relations??
Jagadish, if I understand you correctly, the Guarding is used as a skeleton to mate parts in a subassembly and it's also used to locate parts in a parent level assembly.
This is a common condition when you're creating a top-down assembly.
How to handle this depends on where the gaurding is going to show up in the bill of materials. If it's going to remain part of the subassembly BOM, then in the parent assembly, you can hide the component and exclude it from the Bill of Materials (or make it an envelope). Do the same thing to the gaurding in the subassembly if it's going to show up in the parent assembly BOM.