Specifying Assessment Settings for an Interaction Area 
Use
You can specify the following values for each interaction area:
If the learner exceeds the maximum number of permitted mistakes or the maximum time allowed, the Player outputs a feedback text and moves to the next step. For more information, see
Editing Feedback Texts.Prerequisites
You have selected Lesson with assessment or Assessment only for the type of tutorial.
For more information, see
Specifying Tutorial Type.Procedure

If you do not want to set a time limitation, enter 0 in the Maximum Time Allowed field.