  The energy of the transition from Galactic to extra-galactic origin of cosmic
rays is one of the major unresolved issues of cosmic-ray physics. However,
strong constraints can be obtained from studying the anisotropy in the arrival
directions of cosmic rays. The sensitivity to cosmic-ray anisotropy is, in
particular, a matter of statistics. Recently, the cosmic ray anisotropy
measurements in the TeV to PeV energy range were updated from IceCube using 11
years of data. The IceCube-Gen2 surface array will cover an area about 8 times
larger than the existing IceTop surface array with a corresponding increase in
statistics and capability to investigate cosmic-ray anisotropy with higher
sensitivity. In this contribution, we present details on the performed
simulation studies and sensitivity to the cosmic-ray anisotropy signal for the
IceCube-Gen2 surface array.
