Activity count

Question:

Is there an activity count somewhere, tracking milestones and/or discrete activities added to the schedule?

Answer:

There are a couple ways you can track symbols. First, you could insert a Symbol Count column (Insert Tab > New Column > Symbol Count) to see how many symbols each row has. Here's an example.

Another option is to view one of the Symbol reports (Tools Tab > Symbol > Symbol Type for instance). This will list out all the symbols on your schedule.