Q: Is it possible (using YdocTerminal) to send a HEX command to a sensor (to change it’s address)?
A: Use a binary editor to create the HEX command string.
(Free binary editors are available on Internet).
Open YdocTerminal, connect to the Sensor using the COM port option in the Maintenance menu.
Paste the HEX string into the COM port, connected to the Sensor.