Visibilty Glitch
Another glitch for the Daz programmers to make note of: I can open an item, use the polygon group editor to select some parts and make them invisible....but...when I open that file up the next day the invisible bits are suddenly visible again. Why don't they stay invisible? Personally, I wish there was a "delete selected geometry" option.
Comments
The hide option is mainly there for easy editing, temporarily hiding an area that is blocking selection. If you want to permanently hide part of the mesh you need to assign it to a new Surface and make that transparent. Note that the change won't propagate to other instances of the item unless you save it back to the original asset, or create a new, modified asset.