0_8116 The physical manifestations of the state of matter known as excitonic insulator strongly depend on the degrees of freedom it couples with. For instance, the excitonic instability in a crystalline system may result in a distortion of the charge density whose coupling with the ionic degrees of freedom can mask the nature of the excitonic insulator.In this seminar, I will discuss how a dichotomic manifestation of the symmetry breaking underlying an excitonic phase transition can be engineered to stabilise a purely orbital time-reversal symmetry broken (TRSB) hidden quantum state in a two-dimensional (2D) material. I will show the formation of the TRSB state driven by a self-generated flux which sustains equilibrium orbital currents issuing from the excitonic instability. The transition to the TRSB excitonic state is controlled by means of engineered geometrical constraints which, in a cylindrical geometry, enable coupling between the excitonic order parameter and free space electromagnetic field. I will discuss implication of these results for the stabilization of exotic TRSB states in quantum materials and the disentangling of coupled excitonic and structural transitions.