It's a very small level of effort to add additional Higher Logic communities to your FUSE index.
Sometimes you may wish to include certain communities now but exclude them later. Or perhaps exclude certain ones for now but include them later. As your business needs change, simply let us know the CommunityID(s) of the communities you'd like to exclude/include and FUSE will take care of the rest.
To determine your organization's Community IDs, please follow Step 3 under <<HELP DOC re: HL Setup>>.