Should action buttons within an entry page be identical or different?
I am designing an entry screen and there's a few action buttons at the bottom of the page. Should they be identical for consistency or different since they trigger different actions?
Behaviour:
This is the form design for 'New Student'.
When the user completed all the fields, user can click 'Save'. This will add the new student into the system. The tab will remain open with all the filled details. User can manually exit the tab by the 'X' button when they are done. But most users prefer to have the tab open after save to review back the details or execute tasks available in the 'Options' button.
OR User can tick the 'Create Another' checkbox and then click 'Save'. This will add the new student into the system then empty the form for new submission.
Question: A new requirement (this is fixed) is added which is to add a 'Save and Close' button so when the user click 'Save', it will add the new student into the system and automatically closes the tab. I have visualise this below
Option 1:
This is my top choice. The difference between 'Save' and 'Save and Close' is clear. However, if user tick the 'Create Another' checkbox, it will disable the 'Save and Close' button.
Others
Option 2:
Since most user will prefer 'Save' over 'Save and Close', the 'Save and Close' is hidden inside the dropdown. However, I find it impractical to only display one option as hidden. If the user select the 'Save and Close' it will untick the 'Create Another' checkbox if it is previously tick.
Option 3:
Im not sure about this option since the 'Save' and 'Save and Close' button is identical, it might causes the user to scan both button to feel sure about the differences.
What are your thoughts? Or is there other better way to deliver this.