Good day!
I almost did to what I need, but still got a wall for myself. I need the beam (which is in a separate emitter, of course) to be attached to EACH pair of particles that are emitted from their emitters. These white particles are in different emitters - one I named First, the other is Second. In beam emitter I exposed the Beam Method in the Target and assigned Particle variant to Source and Target modules. In general, everything works as I want, except that beam is attached to the first spawn particles, but others ignores. I think that I need to do some simple action, but the brain no longer wants to reciprocate. Thank you!
By the way, I want to say that if you believe [this documentation][1], the Particle method should not work in Source/Target modules, but it does this, although not as I need it.