In condensed matter systems Skyrmions are topological spin textures which are candidates for future technology. In bulk material Skyrmions form a lattice (SkL) that exists over a small region in B-T, stabilized by thermal fluctuations. Much research is focused on extending the SkL stability range, making them more viable for use in future technologies. One such method is to apply hydrostatic pressure. A recent ac susceptibility study on Cu2OSeO3 shows that the SkL phase in this material becomes dramatically enhanced by only a few kbar. In light of this, we now wish to solve the open questions posed by the ac susceptibility study of i) how the key parameters of the effective Hamiltonian vary under pressure, and how this leads to the enhanced SkL stability, and ii) exploring how pressure can affect both the structural integrity and coordination of the SkL. These questions can be solved using SANS with the sample under applied pressure. Here we request 6 days on D33 to determine the effects of hydrostatic pressure on the magnetic phases of Cu2OSeO3 at 5 kbar pressure using the Zi-Tr gas pressure cell with Helium PTM, with a electromagnet and a cryostat, which is only available at ILL.