Succesfully installed the office plug in

Attempting to sign in from MS-Word - add-in does not accept the user+password

Attempting to add app permissions, followed the instructions here  https://www.zoho.com/crm/help/office/install-plug-in-for-microsoft-office.html.  The instructions say:

2. In the Profiles page, click Edit for the user's profile.

3. Under Apps Permissions, select the Zoho CRM Plug-in for Microsoft Office check box.

However, when editing the 'Administrator' profile, there isn't an option like "Apps Permissions"

Please advise how to enable the office plug in