In principle, it is possible to transmit CSI RS beams in FR2 but it depends upon the implementation. Assuming analogue beamforming in FR2, then it is only possible to transmit one beam at a time. So it would not be possible to transmit refined CSI RS beams at the same time as transmitting the broader SSB beam.
By experts in this community, yes its possible.
But beamforming technique used need to check in FR2.
Is it hybrid beamforming used?
If its analog beamforming then not possible?