Good day. Thank you for your question.
Please find your answers in sequence, below:
1) You may use the same configuration on other FMB120 devices, but take note that since you will be using that specific firmware (with SECO feature) so if you use other Configurator versions to make changes or edit then there may be parameters missing. Thus, it is suggested to use the firmware with the SECO feature only if you require the device to work in such a manner. Otherwise, please follow the recommended firmware versions on our Wiki page - https://wiki.teltonika-gps.com/view/FMB120_firmware_errata
2) SECO has the highest DOUT Control priority so this means that the SECO feature supersedes all the other features such as Immobilizer, Green driving, Overspeeding, etc. Let's say that SECO is detected during Overspeeding, so since SECO has the higher priority, it will control DOUT.
For more information on DOUT controls, please refer here - https://wiki.teltonika-gps.com/view/DOUT_controls
For more information on SECO, please refer here - https://wiki.teltonika-gps.com/view/Secure_vehicle_disabling
Therefore, we would like to analyze your situation. Kindly reach out to us via VIP Helpdesk or contact your Sales Manager/Distributor. If you don't have any contacts with our Sales managers, please contact them on our official website https://teltonika-gps.com/
and click on the "Contact Us" button. When you will click, please fill the form and submit it.
Note: as a topic, please choose "Vehicle telematics" or you can send an e-mail with the description of your situation to firstname.lastname@example.org
Thank you for your understanding.