Does Mailing Country have to be a part of the address, is it possible to remove?

Is it possible to hide the Parent Account field?

In the Pipeline, do not want Close Date to be a required field.

Would like the Opportunity Name field in the Opportunities tab to be a dropdown (picklist). If that's not an option, is it possible to rid of the Opportunity Name field and create my own custom field to then be a picklist?

Would like the Opportunity Name field in the Opportunities tab to be a dropdown (picklist). If that's not an option, is it possible to rid of the Opportunity Name field and create my own custom field to then be a picklist?