You can quickly attach item(s) to a takeoff. Start by clicking on the three dots next to the takeoff name to get to the sub-menu, and then click "Edit"
Click the green "+ Add items and assemblies" button located at the bottom left of the screen
Click on "Items"
Click on the Items folder to expand, and then click the green "+" to the right of each item(s). Then click the green "Add Items" button
The material(s) will now populate in the estimating reports.
TIP: The item type must match the takeoff type. For example, a linear item would be attached to a linear takeoff
TIP #2: You can add both material and labor items to the same takeoff.
TIP #3: Adding your takeoff to the library, will create a template with the items already attached for future projects.