Hover over the image below and click on areas of interest to get a little more information.
You can easily find this out by creating a test post and clicking around.
Opens the Blocks list whee you can add a block. Blocks are searchable.
Get details of the post or page.
Depending on whether a block is selected or not this opens the settings for the block or page.
This opens the Jetpack panel, currently this allows you to preview what the page or post will look like on Google, twitter and facebook.
The options panel has several section to choose editing options. Setting the toolbar and fullscreen are discussed on the Basic Settings page.