Log into the system as peter (Peter), the current task is the top level task called Projects. Note that the user Peter has no access to the project Projects (but only to its subproject - TestProject), thus, Peter cannot create subprojects of Projects as well as perform many other actions. 

Select the project TestProject in the Subtasks window, after that it will become the current project. 

To create a bug in the project TestProject – choose the task type (bug), enter the task name (Something goes wrong); and press the Add button. 

Enter a detailed description for the bug, specify its priority and press the Save button. 

You will find yourself in the window for adding messages to the new bug. For example, to resolve the bug, choose the message type (e.g. resolve), specify the next handler (e.g. Peter), select the resolution (e.g. fixed), enter the time it took to fix the bug (e.g. 1 h 20 min), type the comment and press the Save Message button. 

Note that the Task Header - the actual budget, the status and the resolution - have now been changed for the task according to the added message.