@NGPinDurham - When viewing each variation, you can select the “copy process” option from the gear icon in the upper right corner. This will create a copy of each variation in its current state and store that copy as a unique process titled “Copy of [process name].”
You then need to decouple the existing variations from the standard:
If you are using process specific variations, simply view each variation and select “archive process” option from the gear icon in the upper right corner. This will leave you with the standard as its own, stand-alone process.
If you are using global variations, you will have to export the published standard to XML (same gear icon in the upper right corner), archive the standard and all associated variations, and then import the XML file of the standard. Note that this will erase all history of the process as the XML file will be imported as a v0.1.