To create a new 2290, right click on the company name in the left pane, and choose the option for Excise returns and then Form 2290.  You will need to add the period.  If it is for the current tax year, you would choose July of 2021 or the current year (7/2021 through 6/2022).  If you have obtained a new truck, then you choose the month when it will be put on the road.