By default, a community has access to all gear definition folders and hence has access to all gears. If necessary, you can limit the access of any community to the gears contained in specific folders. For example, if you had a gear containing sensitive financial information, you might want to prevent all communities except the Accounting community from having access to the gear. To limit gear access:
Enter the Portal Administration and click on the Communities tab.
Select the community for which you want to limit gear access and click its gear folders link.
The Assign gear folders to the Community page opens.
Click the Select Folders below radio button and then check only the gear folders to which you want the community to have access.
Click Save.
Note that if a gear already exists in the community, this procedure will not remove that gear from the community. To remove access to a gear that already exists in a community, you need to:
Remove the gear from each community page on which it appears.
Use the Community Gears tab of the Community Administration to delete the gear instance.