Right now the option for the diameter of supports/hangers to be adjusted by the outside insulation of an item is determined by the Adjust Support Size checkbox for the insulation. This feature works well, however this makes the setting global for any support item attached to the items with insulation.
It would be nice to be able to designate directly on support items whether they will grab their diameter from the insulation or go directly to the pipe. This would be useful for instances where you may have a clevis hanger that reflected pipe and insulation together, but had clamps on the pipe directly.