alias exec

in CCNA & CCENT
So I could be completely sleeping here but I'm using Packet Tracer and would love to give the alias exec command a try but it's not recognized in the routers or the switches. I googled and couldn't find any definitive info either. Is this command missing in Packet Tracer or was the command wiped from the IOS?
WGU Progress - B.S. IT - Completed
Comments
XPS 15: i7-6700HQ, 256 pcie ssd, 32 GB RAM, 2 GB Nvidia GTX 960m, windows 10 Pro
Cert in progress: CCNA (2016 revision)
Yeah, I was actually thinking of delving into GNS3 until I found out that little fact. I might mess around with it in the future if I really feel the need for it but I was really hoping for an all inclusive simulation solution until I can afford real equipment. Lack of switch functions and a major need for resources deter me from going the emulation route. Thanks for the info guys.