I don't think that is possible for CX in the current versions. It may be good to import the root through a management/central configuration tool anyway to avoid the risk that the switch will download a rogue certificate the first time and use that. Feature requests can be filed through the Aruba Innovation Zone which is available to Aruba partners. If you don't have access, get the request in through your Aruba partner or local Aruba SE.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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