Since Quicken Simplifi is designed to not double count transactions in the Spending Plan, you won't see Recurring Transactions in a Planned Spending expense of the same Category. This means that once a transaction is linked to a Recurring Reminder, it will be included in the Bills and Income section of the Spending Plan and will not be counted towards a Planned Spending expense that uses the same Category.
Here's an example of how this would look in Quicken Simplifi: