As stated above the maintenance manual will give the exact instructions but that having been said once the engine is inhibited you must not turn it. turning the engine will remove the inhibiting oil from the moving parts exposing them to corrosion.
We had a Gyipsy engine in storage for about 25 years, the chief engineer at the time of storage (ex imperial airways!) I am told filled the engine with hot inhbiting oil and rotated it in an engine servicing cradle eventualy draining the excess oil.
When the engine was required for service I removed a cylinder to inspect the internals for corrosion, none was found.