# Digital Signature

## Assign a user certificate to a method of use

| The requirement for this example is that the user certificate for the user Sample has already been imported, as described in Import a user certificate from a private exchange file.
| Select Manager > Digital Signature > Applications. The combined form Application (Digital Signature) is opened.
| Search for the usage RELEASE with the additional usage ART, to enable the user to sign items.
| By specifying an additional usage it is possible to limit the release signature. Following the example down to the end, the user will only be able to sign items. If the user shall be able to sign projects and documents as well, select the usage RELEASE with the additional usage NONE. It is also possible to assign all additional usages (ART, DOC andPRO). To enable a user to use his or her own password, it is necessary to enter the certificate in the same usage and additional usage.
| Switch to the sub mask Certificates.
| Switch to the Insert Mode above the context menu or the button .
| Switch to the field User.
| Click on the button . The user list is opened.
| Use the search function to display the data for the user DEMOEP.
| Highlight the entry.
| Select Take Entry from the context menu. The list is closed and the entry is used.
| Save the entry with the button .