I've drawn a large system with design line without a section and now want to apply a section for example "Level 01" to this system and it's hangers. I can't figure out how to do this without doing it one fitting at a time.

In addition to this I would want the hangers to extend up to the preset soffit elevation that I input into the section "Level 01".

Is this something that will happen once the items are drawn in the appropriate section?