I am looking to add a country drop down in the country field within the lead record for Marketo. Today we have a drop down on our forms but i would also like to have it available when i am manually entering a lead record in Marketo. The field that we sync to in SFDC is not a drop down - woudl this be why we can not have it as a drop down in Marketo? I want it to be like how the Salutation field is set up.
The Forms are built separately from anything else you see in Marketo. You could make Country a text area field as well in a Form.
In this manual lead change screenshot, the field will not typically be a Picklist. If you click on it, it may show you a list of current values used in the system, or maybe not. There is not much you can do to change this. In the Filters, Marketo should act more like a picklist.
The question I have for you is - Why are you manually entering or editing leads in Marketo more than on rare occasions?
You can change the field in SFDC to become a pick list as long as the list matches the list on your forms. This way the field can become a picklist, as long as that field is sync'd correctly between SFDC and Marketo.