@Solar Eclipse wrote:
...could any number of other forms & worksheet data in the Forms view possibly be transmitted...?
Those don't get transmitted and are for your records only. In fact, not even every single thing listed in "Forms for filing" get transmitted, most notably the filing instructions. The IRS wants just enough information to calculate taxes and refunds (along with some critical information on those forms/schedules).
This would be a drastic oversimplification, but if you can't find it on the IRS web site, it almost certainly does not get transmitted (with very limited exceptions, such as certain election forms).
