Guide Needed to Assign Com Port from Host to Virtual Machine in Hyper- V

Hi,

Currently, I'm using Windows 10 and created virtual machines (Windows 10) using Hyper-V.
I need someone who could show me how to share specific com port on host machine to each VM.

For example, currently my host machine have 40 com ports. I want for like VM1 to share COM1, 2,3 or 4 etc, VM2 to share COM5, etc.