"SCAN Parameters" fuction can be used to detect parameters whose values are being transmitted from LV-CAN device.
"CAN Mode option by default - Auto Detect. This option is recommended and shouldn't be changed. Selecting one of 2 adapters solely won't help device to work better but user can be sure that other adapter won't work.
"Send data with 0, if ignition is off" functionality provides you a possibility to send zeroes instead of NULL data. That means all selected elements will send constant values instead of popping only when data streaming is up.