This image shows the bottom portion of the Create compute instance page.

Under Add SSH keys, there is text "Generate an SSH key pair to connect to the instance using a Secure Shell (SSH) connection, or upload a public key that you already have." 

There are options for:
--Generate a key pair for me
--Upload public key files (.pub) (selected and surrounded by a red border)
--Paste public keys
--No SSH keys

There is a field SSH public keys and a Browse link, which is surrounded by a red border.

Under Boot volume, there is text "A boot volume (this is a link) is a detachable device that contains the image used to boot the compute instance." 

There are these three check boxes, and none is selected:

--Specify a custom boot volume size. Volume performance (this is a link) varies with volume size. Default boot volume size: 46.6 GB. when you specify a custom boot volume size, service limits apply.
--Use in-transit encryption. Encrypts data (this is a link) in transit between the instance, the boot volume, and the block volumes.
--Encrypt this volume with a key that you manage. By default, Oracle manages the keys that encrypt this volume, but you can chooose a key from a vault that you have access to if you want greater control over the key's lifecycle and how it's used. How do I manage my own encryption keys? (The last question is a link.)

There is a link Show Advanced Options.

There are these items:
-Create button, which is surrounded by a red border
-Save as stack button
-Cancel link