Dynamic partition subchannel values

Hello, I am currently utilizing a developer account and am interested in testing the dynamic partition feature. Is there a method to adjust the partition values to ensure that each subchannel represents a single person? For example, in a group with 50 members, I would like to have 50 subchannels that are assigned automatically.

The purpose behind this is to simulate a one-to-many relationship. I want User A to receive messages from both User B and User C, while ensuring that User B and User C cannot see each other’s messages.

Thanks in advance.