Reference Cinema 4D Basic Features Configuration Cinema 4D Project Settings
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

To Do

If numerous people are working on the same Project it can be very useful to add comments or to create a to-do list for specific tasks. Cinema 4D offers 2 ways of doing this:

The Project Settings menu offers a To Do tab in which all of a Projects comments added to the above mentioned locations can be collected and viewed:

Comments collected from tags and Markers are displayed in the Task tab and can be set to Done in the corresponding tab.

The Task and Done tabs are shown in the image above. The Task tab contains all tasks that have not been completed, which can be moved to the Done tab (and back to the Task tab, if necessary) when completed.

Tip:
Note that elements added via XRefs cannot be marked as Done in the master file.

Also take a look at the Doodle function with regard to making notes in the Viewport.