Hi,
* You can use different hosts for different post types. In "HOSTS" -> "Files", under "Type" tab just add / remove needed "Upload for" types.
* You can as well use hosts for needed sections only. At the same place there is "Sections" tab. Just assign needed hosts to needed sections.
Both of those are clearly shown in tutorials:
http://creator.themasoftware.com/faq.php?expand=faq104* Compress settings are global at the moment. If you really need that just use a second instance (copy paste whole themaCreator folder to different location [on the same PC] -> run a second instance with different compress settings and process only needed files).