There is no way to indicate flow control

[anthonymesa]

There are devices, such as the Arduino 33 BLE Sense, whose serial communication requires hardware-level flow control. Currently I can not find how to accomplish this within the plugin (nor am I sure that gdsercomm or sercomm support it after a quick glance at the repos).

Implementing the ability to choose between RTS/CTS would be enough for my immediate purposes personally, but I figure support would also include DTR/DSR as well as XON/XOFF software-based flow control.