You can find additional functionality in a takeoff template by clicking on different areas. 

Clicking on the 3 dots will access this menu:

:  This will delete all the geometries associated with the takeoff
Duplicate: To create a new takeoff with the same measurement type
Edit: To change the name or color, or to add an Item or Assembly.
Library:  To save the takeoff as a template to be used for future projects. 

Tip #1: Clicking on the takeoff name goes to the takeoff settings screen

Tip#2: Clicking on the eyeball to the left of the takeoff icon will hide / unhide the measurements associated with the takeoff template. Click the eyeball at the top to Hide All or Unhide All. 

Tip #3: Clicking on the arrow or the quantity will Start the takeoff

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