Can I install the StealthCollect binaries in one location on the monitored host and still support multiple instances on that host? If so, how do I register each additional instance?
StealthCollect does support multiple instances under the same installed framework. To add additional instances, you just run the Local Server Installer again, and specify the same port, and the installer will detect that the framework is already installed and will proceed to instance configuration. This will create the additional host-sid for the new instance under the ../agents<install_dir></install_dir>/StealthCollect/6.0/ directory.
Please note that the agent should be up when you run the installer to configure the additional instance. You should also run the installer again for each instance that you want to configure.