In the upper right hand corner, select the "forms" icon. Once in "forms" scroll down the index on the left side of the screen until you see the form you are looking for - 2106 Employee Business Expenses. You should be able to input the information directly into the form, unless the box is the result of a calculation.
Or, from the step by step screen, in the upper right corner, there should be a search box. Input "2106". Once the drop down populates, the first choice should be "Jump to 2106." Once you select the "Jump" option, it should take you to the step by step section entitled "Job Related Expense Summary." Select the "Edit" button to walk through the entire section again.
I hope this helps.