set data eta.x[2]|meas = 0
set data etap.x[2]|meas = 0
set data alpha.x[3]|meas = 0
set data alpha.y[3]|meas = 0
veto data *
use data eta.x[2]
use data etap.x[2]
use data alpha.x[3]
use data alpha.y[3]
veto var *
use var quad_k1[0:4]
show const