Description - Just as Timesheet Preferences can disallow logging time to Projects, add option for disallowing logging time to Issues
Why is this feature important to you - Only wish Projects and Tasks to have hours put to them
How would you like the feature to work - Add option in Preferences. Have overiride on Projects so that the Project Owner can decide whether hours can be logged on issues. Can be set on Templates in Issue Settings
Current Behaviour - Only Project Hours can be prevented