Create agreement with formFieldGenerators which use absolute positioning of form fields

Hello.

I would like to know how to define formFieldGenerators in case I want to use absolute positioning of form fields (x, y and page number) instead of achored positioning (x offset, y offset and anchor string).

In particular:

1) If this option still supported in API v.6?

2) What is generatorType (string) value I should use?

3) How to include formFieldLocation object in my formFieldGenerator?