It would be nice to be able to have a tab with a notepad opened where we can take notes
when you access the properties of any object you created (e.g. connection, credential, task etc.), you can assign notes to the object, as seen in the following screenshot:
Alternatively, you can add an object called 'Information', where you are also able to add notes and access these via the Navigation bar:
I hope this helps, and let us know if you need anything else!