I would like to see the ability to have an instrumentation class in the spec editor. Currently there are ways to do it, but they are convoluted and a very manual process. I think there is enough demand to add it as a category so it is there by default. The blocks exist for instrumentation, why not have a category for it.
This is the way currently:
https://knowledge.autodesk.com/support/autocad-plant-3d/troubleshooting/caas/sfdcarticles/sfdcarticl...