You cannot add anything else to PT; only use whatever is there matching as close as you can your IOS device
PT from Cisco Net Academy is just a software Simulator; it does not run on real IOS or virtual IOS; It is close to IOS but It does not really behave like real IOS would (some simply features do).
PT is excellent tool to learn and practice networking fundamentals and commands for CCNA exam.
Regards, ML
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