From the Assignment Summary page, click the Pencil icon on the Class Group card to open the Assignment Settings subpage.
Click the Schedule tab.
For multiple Class Groups, click Common Assignment Settings from the Assignment Summary page. Select Schedule from the dropdown menu to to set a common schedule.
Change Assignment Start and Due Date/Time. You can choose to send students a notification when the Assignment has started by selecting the checkbox beside Notify students assigned when Assignment starts.
For Lessons with Sections, you will be able to set Start and Due Dates for individual Sections. By default, the Sections Start and Due Dates will follow the Start and Due Dates under the overall Assignment Schedule.
Click Save followed by X to close the subpage.
Click Assign to assign the Lesson as Assignment.

Edit Schedule of an Existing Assignment

Click the Overflow (3-dot icon) on an Assignment card and click Manage. Alternatively, enter the Assignment, click the Overflow (3-dot icon) to open the right menu and select Manage Assignment Settings.
On the Assignment Settings subpage, click the Schedule tab.
The Start Time cannot be changed if the Assignment has started. However, you can change the Due Date and Time even if it is past the Due Date.
For Lessons with Sections, you will be able to set Start and Due Dates for individual Sections. By default, the Sections Start and Due Dates will follow the Start and Due Dates under the overall Assignment Schedule.
To notify your students that the Assignment schedule has been updated, select the checkbox beside Notify assigned students that schedule has been updated.
Click Save followed by X to close the subpage.

(B1,i) Manage Assignments

(B1,iii) Edit Assignments