You can re-use the same hierarchical sheet multiple times.
This is also the basis for the “replicate layout” script that helps a lot with, well, replicating the layout of one of the sub circuits on the PCB.
This link:
has a link to a pdf with a tutorial for using the “Replicate Layout” script. It probably also handles the part of re-using a schematic sheet in a hierarchical design, but I’m not sure about that.