Q: How can I build ReactOS for another Architecture?
A: Download the specific GCC Arch Plugin from sf.net eg the x86_64 one and install it. Afterwards you will have a new Shortcut for a arch specific RosBE. Additionally you can use charch command, like this "charch amd64"

Q: How can I use another GCC Compiler for building?
A: Use our chdefgcc command. It changes the GCC Compiler temporary for this session. Use it like this for using another host GCC: "chdefgcc C:\path\to\gcc host"

Q: How do I clean up my Source tree?
A: Use "clean all" to tidy up the tree from all built stuff and removing all logs too.

Q: How do I update RosBE?
A: Subversion Updates can be loaded via "update" command. It detects the updates you already installed and shows you new ones if existant. It tells you what they change and asks you to install them. If you choose to skip one, it asks you if you want to be reminded again of this Update next time. If you choose "no", it wont show up anymore again.
Version Updates are onley be released as Setup. Uninstall the old Version and install the new one.

Q: How does this shortcut Tool work?
A: Just type "scut SCUTNAME C:\path\to\scut" and it generated a chortcut you can reach via "scut SCUTNAME" If you wish, you even can make a shortcut default, which means it will be loaded on startup all the time.