You can invite Instructors to your Group by emailing an invite to the Instructors. If, and only if, Instructors have an existing Practice account, then you can simply add the Instructors to your Group as opposed to inviting the Instructors to your Group. The following walks you through both processes.
To invite Instructors to your Group, visit your Group page, select the gray More Actions button, select Edit from the drop down menu.
Select People in the menu on the left hand side of the page.
From here, select the blue Invite button.
Under Assign a Role, select Instructor from the drop down menu.
Provide the email of the Instructor you would like to add in the Email Address field.
Select the blue Send Invite button.
The Instructor will receive an email titled Welcome to GROUP NAME HERE that includes a link to your Group.
Add Instructors to your Group
To add Instructors to your Group, first select the blue Add People button.
From here, you search for specific Members in the search bar or look through the list.
Check off the corresponding boxes next to each Instructors name that you would like to add to your Group.
If the assigned Member role is not Instructor, then you must assign Instructor role to the member. To do so, select the current role the Instructor is assigned and a drop down menu will appear. From here, select Instructor.
Select the blue Add People button at the bottom of the page.