ov: overlay = {q1[k1]:{-3, 0, 1, 3, 5, 7}, q2[k1]:{-2, 0, 0, 4, 6, 8}, q3[k1], q1[tilt]:{-1, 1, 3, 5, 7, 9}, 
            q2[tilt], q3[tilt]}, var = {value}, x_knot = {-2, -1, 0, 1.2, 2.2, 3}, value = 0.1

BEGINNING[BETA_A]  = 50
BEGINNING[ALPHA_A]=  0
BEGINNING[BETA_B] = 50
BEGINNING[ALPHA_B] = 0
PARAMETER[geometry] = open
parameter[e_tot] = 1e10


ov[slave(1)%y_knot(2)] = -1
ov[x_knot(4)] = 1

z: overlay = {ov[slave(2)%y_knot(3)]:a, ov[x_knot(5)]:b}, var = {a, b}, a = 2, b = 2

q: quadrupole, l = 1e-10
q1: q
q2: q
q3: q

lat1: line = (q1, q2, q3)

USE, lat1

no_digested