How to dynamically modify simulation speed on PX4-SITL?

Hello, I’m running PX4 on the AirSim SITL environment and want to record data (e.g. angular rate) with high sampling rate(1000Hz).
However the simulation is very slow at this rate, so I would like to slow down the simulation ONLY if the drone reach specific areas and use large sim_speed factor to skip the transit between them.
I need to change the sim speed factor during the flight and I know ArduPilot can do this via mavlink.
Can PX4 do the same thing or should I file a feature request?