1) This has been logged asa bug in our system to be corrected in a future update.
2) I have added a feature request for this.
3) No, you will need to remove the page css after the pages are created.
4) Only basic options can be configured for the HTML Editor instance on the Server Settings tab. Other settings will need to be changed after the pages are created by editing the instance on the page.
5) This is also a bug that has been logged to be corrected.