You can do it by clicking any device and then navigating to CLI tab. To configure any device in packet tracer you are required to open or access its CLI. Related Article: PowerShell vs Command prompt
There are also some other similar software but Cisco IOS output will be same on all simulators. Here is the detailed Cisco router configuration commands list, which can be implemented with packet tracer. Packet tracer is a network simulator used for configuring and creating the virtual cisco devices and network.
