Sitl swarm and specification

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hi everyone,

I am a newbie at SITL, I am trying to simulate a swarm drones. I did manage to spawn it in gazebo. But I need to access it’s specification(like spawned gps position, weight, frame, internal boards, battery).
Then for multiple drones I want to initialize several drones. Do you have any idea how ?

I checked copter.parm and gazebo-iris.parm
but I coulndt get any info about it !