URL formats for setting form data?

Is there any way in SugarCRM to open a Sugar URL in a browser to, for example, create a new Contact with some of the form data already filled in?  For example, to create a new Contact Form I could load this URL:


However, what if I wanted to load the form but also set some field values.  For example if I wanted to set the Last Name field?  I tried adding a query parm set to the field name:


But no luck.  I've searched online but so far found no documented way of achieving the result.

If Sugar doesn't support this via URL query parameters then is there any other way to externally open a new SugarCRM record form and populate some of the fields?