You've just selected an object and this panel popped-up :

Ergonomic Workplace Design (EWD) app needs to have a categorization of the object you want to use. But why ?
By properly categorizing the object, you will:
- Have good grasp on you object (the grasp is influenced by the type of object)
- Create your worker task faster (the object will be added to the dropdown menu)
To sum up
Categorise ressource = in combo box & good grasp
Back to "Worker task creation" menu