We want to use filters by system to handle as much documentation as possible in our model. We use this to assign supply and return ductwork to different colors and we also use it for duct size tags. This works great for new construction, but I'm running into a problem tying into existing ductwork. Changing a duct in an existing system from demolished phase "none" to "new construction" disconnects it from the system, they are no longer the right color and the tags all turn into "?"
Has anyone else come across this/found a workaround for it? In most cases it's not a big deal because the re-used portions are modeled as part of the new system and the demo'd portions can be overridden in view and tagged with text, but there are other times when it would be nice to keep things connected and organized even though they're being demo'd.
Thanks in advance.