There is a plugin that while still being further developed/improved is available to perform this type of capability. It is available at
https://github.com/mc12345678/Stock_...butes_Combined. Installation involves first uploading/incorporating the files in the includes and admin folders and then to use the files/folders within the ZC versioned folder to incorporate into your existing software.
ZC does not currently provide such attribute stock control, but that is provided by use of that plugin or other similar software.
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