If you would like to manage viewing permissions for an entire manual or chapter (e.g. make a manual or chapter's content not visible to certain users), you can change the permissions in bulk.
The ability to set viewing permissions for articles is available starting with the Small Business Plan. If your account is on an older plan then you will need to upgrade to use this feature.
Select Manual > Chapter
You can select All Chapters if you want to bulk edit the entire manual's contents.
Open the Bulk Edit interface
If you are not familiar with how to use the Bulk Edit interface refer to the following article: Bulk edit article properties
Modify the viewer group property
After selecting the articles you want to modify, click on the Change Properties button and click the Add Viewer Group property.
Add a viewer group
Click the + button next to the viewer group you would like to assign to the articles.
The viewer group will appear in the list of properties that will be modified. Click Apply to make the change.
Each article will have a locked padlock next to the title along with the number of groups who are assigned to be bale to view the articles.
If a user group is not assigned to all articles within a chapter, then the entire chapter will not appear to those users. And if a user group is not assigned to see all articles in a manual, then the entire manual will not appear to those users.