You can create the LUNs manually. Scan Manager is a good tool to understand which Group/bucket a VM falls under in terms of misalignment. You can definitely use it for an indication on the offset that you want to use for the optimized LUNs.
I can't post the commands here as these are supposed to be executed in diag mode. You will have to get in touch with NetApp support or a NetApp employee privately to get access to them. It is always advisable to use tools like VSC to take out any possibility of user error.
Also calculation of offset is not as simple as using the Bucket/Group number as the offset. There is more to it. Calculating the offset is a critical step.
-Satinder