Please ignore above request – I found the settings!
Diabolo, I found your recommendation (If you really want it not to display you can use the following CSS: #um_field_general_user_login {display: none;}) very helpful, thanks!
Would you also have a suggestion about how to suppress the ‘Login’ button at the bottom of the Registration form (which confuses users who are registering and who actually need to click Register).
Also, at the bottom of the login form, next to the Login button, there is a ‘Register’ button I would like to suppress.
This is especially useful for me as I have both forms on the same page.
Cheers!