You can leave a comment in the body of the action itself, but it is extremely limited there - just a few words, and sometimes there is a need for a detailed description of the action, since it may not be obvious at first glance what the action is doing.
To comment on a large number of actions at once.
This will be useful in cases where the template has grown to a large size and it becomes difficult to visually determine what is responsible for what.
In the screenshot, two separate template branches are highlighted with red frames (there can be much more of them), and above these branches, numbered 1 and 2, there are notes in which you can simply write the name of what this part of the template does (“Product search”, “Publishing product ”) or you can add a detailed description of the work of this thread here.
If you want to share your open template with other people, you can leave a description of the template and/or contact information using a note.
You can store any information you deem necessary in notes.
How to work with an action?
Note font size
Among other things, using notes, you can visually separate different logical blocks from each other.