Hello, thank you for the reply.
I'm using External Data module to import the pressure values since I use another program to generate these pressure values other than an Ansys CFD solver. But since I use the same mesh, I don't have any problem with the direct assignment of node IDs.
I agree with the idea about the limitation of GUI, so I tried to use python script, however, I couldn't find any proper information document that I can use to develop a script to achieve this objective.
I found a post on Reddit that contains a similar script which seems like a thing that I can use but I couldn't edit it for my goal.
Thank you again!