Top panel: trajectory of a Type-P particle associated with Set 1 of N-body simulations in the (Ω₂, i₂) plane (black curve). The initial orbital parameters of this particle are a₂ = 17.424 au, e₂ = 0.371, i₂ = 69.930°, ω₂ = 325.686°, and Ω₂ = 159.785°. The values of a₁ and e₁ associatedwith the inner perturber, and the red and blue curves are defined in the caption of Fig. 2. Middle panel: temporal evolution of the argument of pericenter ω₂ of such a particle, which librates by defining an inverse Lidov-Kozai resonance. Bottom panel: zoom of the middle panel between 480 and 600 Myr. The yellow and green circles illustrated in the top and bottom panels are defined in the caption of Fig. 3.