ArrayClassic command not found in Autocad LT 2018

[Anonymous]

Hi

I'm referring to this article:

https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/You-want...

Whenever I try to use this command, I get the message that the command is not found?

[cadffm]

I am thinking thats absolte not a problem, but thinking clever and export the current standard settings before.