How to change number of COM port in a command line?

Question

Is there away to change number of COM port in a command line?

I have many many devices and for each device Windows assigns different port number (and remembers this number!).

But in my case only one device is connected at any given time. I use serial port COM (using USB).

Therefore I want to use only one COM port, let's say COM4.

I know that there is a way to create some sort of a link, redirection, alias:

change port COM4=COM6

This works! Now I can use COM4.

But! Windows also increments COM port number by one (1). I want Windows to forget old devices and port numbers because I wish to connect more than 256 different devices. Therefore this just cannot happen:

change port COM4=COM270

Is there any chance that I can order Windows to forget old devices and port numbers? I know this can be done in Device Manager but I want to (and have to) do this in a command line.

I know there are also some other commands, for instance:

wmic path Win32_SerialPort

The commands above show ports information. Is possible to change port numbers using wmic?