Nobody said inbuilt editor. People are saying suite. There is a difference, usually in that it's an optional extra, a nice little something your vendor is selling you which helps the programming experience, should you choose to buy it.
As a side note, even if Max3D does do too much, which is unlikely, being that it's open source, that isn't a problem. Hack it down to what you need.
As a side note, even if Max3D does do too much, which is unlikely, being that it's open source, that isn't a problem. Hack it down to what you need.