The following documentation will demonstrate the process of hiding grade items from students. This process is helpful for an instructor if they wish to wait to release grades to students for any reason.
You have a couple options when it comes to grade visibility:
Also, if desired, attach release conditions for an item (ex. once item A has been submitted, item B can then be seen by a student)
To make the grade item visible to students, repeat the steps 1-3 and select Grade item is always visible at step 4.