#2 Apr 03, 2018 00:02
These are settings that are common to/shared by all collections. In the case of cross posting it makes really sense that it's a shared setting.
Regarding URLs, yes it's one of the many problems with cross-posting... which seemed like a good idea a long time ago but isn't really that useful...
What resembles most to what you describe is to use a content block and to reference it in 2 different posts.
In that case though, comments won't be shared.