Tandem wing plane - VTOL

Hello there,

I am working on a project to build a VTOL tandem wing model with distribution propulsion system. The front wing has four motors and two elevons, and the rear wing has the same configuration.

I have been trying to configure this in PX4/arduplane, but I am not sure how to do it. I read the documentation and I found out that the best mode for this is a tailsitter.

However, I am still confused about how to assign the servo and motor functions.

I would appreciate it if someone could help me with this.

Thank you.

โ€‹Reference models.
https://www.youtube.com/watch?v=-2hmy3mz6Yg
https://www.youtube.com/watch?v=Y1oDQYYEpAc