To set up permission schemes for issue operations, perform the following steps:

1. Go to the project that you want to apply the permission scheme to and click on the Administration tab.

2. Select the Permissions option on the left-hand side and click on the Edit Permissions option from the Actions menu:

3. Click on the Edit link for the permissions that you want to update, such as Create Issue and Edit Issue. Note that issue-related permissions are grouped under the Issue permissions heading.
4. Select the target to grant the permission to and click on Grant.