Question Grouped burst spawn particles at random position in a Volume box

Hi,

Im trying to spawn burst of particles at random positions grouped together in a box volume, I use Initialize Particle > SetPosition(Shape: AABox) for that.
I also want a constant spawn rate of particles but also some random bursts.
I have tied to add a Periodic Burst in the Spawn block but it just spawns all particles att random positions and not grouped together.