how do i change the mechanism name that's used to connect to a meter?

i'm trying to connect to an L&G E355, "Management Access" port (1) using GMAC, but i'm running into these bugs:

- when i change the "Authentication" drop-down in the "Device Properties" dialog, and click "OK". the "General/Command line parameters" textbox doesn't update. i have to select a different meter and then return back to the meter i edited for that textbox to update and reflect the option that I selected in the dialog.

Hi!

I'm working on a project with some Hexing meters. I was able to connect to the meter via the optical port using HDLCWithModeE at 300 baud, 7E1, with GURUX DLMS Director and Python, and publish the data via MQTT. However, I don’t know how to establish a connection through RS485. I’ve tried multiple baud rates, servers, and users using the baud rate scan in GURUX DLMS Director, but without success.

The final goal is to have an ESP32 connect to the meter via RS485 and publish the acquired data to my MQTT server.