  Control and understanding of ensembles of skyrmions is important for
realization of future technologies. In particular, the order-disorder
transition associated with the 2D lattice of magnetic skyrmions can have
significant implications for transport and other dynamic functionalities. To
date, skyrmion ensembles have been primarily studied in bulk crystals, or as
isolated skyrmions in thin film devices. Here, we investigate the condensation
of the skyrmion phase at room temperature and zero field in a polar, Van der
Waals magnet. We demonstrate that we can engineer an ordered skyrmion crystal
through structural confinement on the $\mu$m scale, showing control over this
order-disorder transition on scales relevant for device applications.
