  I identify a point-symmetric structure in recently published VLT/MUSE
velocity maps of different elements in a plane along the line of sight at the
center of the supernova remnant SNR 0540-69.3, and argue that jittering jets
that exploded this core collapse supernova shaped this point-symmetric
structure. The four pairs of two opposite clumps that compose this point
symmetric structure suggest that two to four pairs of jittering jets shaped the
inner ejecta in this plane. In addition, intensity images of several spectral
lines reveal a faint strip (the main jet-axis) that is part of this plane of
jittering jets and its similarity to morphological features in a few other SNRs
and in some planetary nebulae further suggests shaping by jets. My
interpretation implies that in addition to instabilities, jets also mix
elements in the ejecta of core collapse supernovae. Based on the
point-symmetric structure and under the assumption that jittering jets exploded
this supernova, I estimate the component of the neutron star natal kick
velocity on the plane of the sky to be ~235 km/s, and at an angle of 47 degrees
to the direction of the main jet-axis. I analyse this natal kick direction
together with other 12 SNRs in the frame of the jittering jets explosion
mechanism.

High Energy Astrophysical Phenomena