In Capacities you can easily switch between outlining and writing in paragraphs. Go to the settings, navigate to the “Editor”, to "Toggle style" and select “Bullet” for the way toggles behave, so you can collapse child blocks under their parent blocks. Also select “Show full path above” for the "Default display of nested backlinks". You can read more about Capacities as an Outliner on our website.
No this isn't possible. You can vote here for that feature.
How can I create a property that lets me add objects from more than one type? For example, if I want to have a 'source' property for my quote object type, but the source could be a person or a film?
How can I create a running total in a table?
Your formula will need to live in a different column to the values you wish to sum.