You can copy single columns or calculated formula columns with the right button > Copy. After that, click with the right button on the column where you want to paste the grades or formula and choose either Paste or Paste as link.
To sort items from your gradebook you just have to click on the 3 vertical dots on the upper-right hand side, then Sort / Show > Sort items.
A new menu will open so you can sort the different items on your gradebook (tabs, students, columns or attendance) to manage and sort them as you wish.
NOTE: In some cases, you can also find Sort items option when you click the right button.
In the Edit column window you can lock a column so that data cannot be modified. This is useful to lock a column with self-assessment or peer assessment rubrics, this option will allow to establish end date to assess with rubrics.
If you access Edit column (by clicking on the column name) and select Lock column option, you can actually lock the column. Then, you'll be able to set the date when the column lock will start, you can also choose if you want to start from the moment you select the option Lock column, with the option Always or manually setting the exact date and hour when the lock is taking place.
To unlock a column access Edit column again and deselect the lock column option.
You can know if a column is locked up anytime as a locker will be displayed in the column. Also, you'll notice the column is locked because when you try to modify a grade in a locked column a warning message will pop up.
Name the columns vertically
To name a column vertically, you have to click on the pencil icon, on the upper right hand side, and you'll be able to edit the tab.
Once you're inside the editor, there's a section named Put columns title vertically, click on it to activate the option and Save.