Is there a way in Eclipse to set up Project>Build Project
or Project>Build Automatically
in a project by project case? Normally these setting
No it is not possible by design. I quote from an older discussion about the same subject:
"we decided that a mode with autobuild on a subset of the workspace confused the notion of autobuild, which currently implies that the user needs to know nothing about builds. Our thinking is that a new working set build, for which you can add a key binding (or remap Ctrl+B), is close enough for the small group of users that want this capability."
So I guess that is your best bet.