After creating a Takeoff, you can add it to the Library. This creates a template so you can use the Takeoff over and over again for future projects. Start by clicking the 3 dots next to the takeoff name to access the sub-menu. Then click "Library"
On future projects, click the Library tab to access all the stored templates. Click the + icon to add as many takeoffs to the project as you want.
To draw, simply click the arrow next to the takeoff name. To access the options menu, click the ellipse to the right of the takeoff.
TIP: If there are items or assemblies attached to the takeoff, they will still be attached when starting the takeoff from the library. To make any selection changes to the assembly, use the edit pencil in the edit takeoff screen.
You can find additional functionality of a takeoff template here: