Multiple Grove - 125KHz RFID Readers Using Seeeduino V4.2, and Base Shield?

Hello! So, I am very interested in using multiple RFID readers, but I want to be able to connect as many of them as possible using Base Shields connected to the Seeeduino V4.2. I cannot seem to find a clear answer to whether this is possible, nor how to go about setting this up. Obviously, making the physical connections is simple enough, but can one Seeeduino/Arduino use the Base Shield to “control or talk to” multiple RFID readers, or am I stuck with the one RFID reader/one controller situation? Thanks in advance for any help, information, or assistance.

Tom