You can already do this. At the very bottom of the ParticleEmitter’s properties is a property called “VelocitySpread” which as far as I know is the size of the cone that particles will emit from (e.g. if you set it to 45 you will get a cone that looks like this).
It’s a little hard to describe it but if you want to get the particles to emit in all directions simply set it to 180 or higher (though I don’t see much of a point in going higher)
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