Control and Release of transactions can also be done via the menu option Business Activities > Release > Control and Release of the transaction TRNREL.

The main difference compared to release via the Office is that Diary entries  can also be shown.

After starting Control and Release of Transactions, a selection panel is displayed where various selection criteria can be entered. All transactions that match these criteria are displayed together with respective key information such as reference, transaction type, status, etc.

The user can release (or reject) the transaction directly from this panel. Alternatively, the user can switch to the more detailed “Transaction Header” panel by double-clicking a list entry. This provides additional information on the release status. The associated correspondence can also be started from here.

A user wanting to see additional transaction details can click on the [ Details] button to gain access to all transaction panels. These provide all the information related to the transaction being processed. 

After reviewing the details of the transaction releaser have option to Release, reject or Delete.

To Release - Release 

To Repair - Repair 

To Delete - Delete 

The Release action will check if you have the relevant release authority and amount configured in your profile in DBIUSR. 
If OK it will add an "A" in the Signatures Obtained  in the Transaction overview :
 
Workflow will wait until Signatures Obtained matches Signatures Required