1, part of the detail table is not the total assembly under the sub-assembly detail table
If you want to show only sub-assembly is, you can let your detail table properties, only show the top level.
If you want to show the subassembly detail for a part of the subassembly, you can have your Detail property, Show Indent, define the subassembly you don't want to show as a part.
2, hidden parts, you can compress
There is a problem if you add instructions.?
With this method, if a part of the subassembly to show the subassembly detail, you can let your detail attributes, show indentation, you do not want to show the subassembly, defined as show as parts,
You do not want to out of the detail of the subassembly name are only displayed (without the internal parts detail), which also requires you to one by one to choose.
Look at my diagram