Multiple Systems Pointing to One WFM Farm

I am attempting to hook a second SharePoint farm into my one Workflow Manager 1.0 farm. My first farm registered just fine. Now I am attempting to tell a second SharePoint farm to register and I get the following message:

Register-SPWorkflowService : An existing scope named "SharePoint" already
exists in the workflow server.  Use the -Force parameter to overwrite the
existing scope.  When using -Force, if another SharePoint farm was registered
using this scope, that farm may not be able to continue working with the
workflow server unless re-registered under another scope name.
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If I overwrite the existing scope named "SharePoint", will that break the WFM connection from my first SharePoint farm?

Is it possible to have multiple SharePoint farms using just one Enterprise WFM Farm?

Thanks