KWallet Manager serves a number of functions. Firstly it allows you to see if any wallets are open, which wallets those are, and which applications are using each wallet. You can disconnect an application's access to a wallet from within the KWallet Manager.
You may also manage the wallets installed on the system, creating and deleting wallets and manipulating their contents (changing keys, ...).
The KWallet Manager application is launched with → → from the application launcher. Alternatively start KRunner with shortcut Alt+F2 and enter kwalletmanager.
A system tray icon indicates that a wallet is open:

When all wallets are closed, the icon will reflect this by showing a closed wallet:

Click once on the system tray wallet icon to display the KWallet Manager window showing all available wallets as icons which reflect their current status, either open or closed.

clicking on a wallet in the KWallet Manager window offers the following functions:
Create a new wallet. A dialog box will ask you for the name of the new wallet that you want to create.
- (Return)
Open the wallet. Opening the wallet causes the contents of the wallet to be displayed in a new window where you can add, delete, or modify the contents of the wallet. You may also double click the wallet icon to cause it to open. If the wallet is not already open, you will be requested to enter the password. See below for details of using the wallet window.
Change the master password for the wallet.
Disconnect an application from the wallet. Currently connected applications will appear in a submenu.
- (Ctrl+W)
Force the wallet to be closed.
- (Del)
Delete the wallet