Bugzilla integration (repost)

Hi all.

Do you know how RT [using 3.6.4rc2] can be best integrated with Bugzilla.
I have seen an option with custom field:

Link values to: RT can make this custom field’s values into hyperlinks to
another service. Fill in this field with a URL. RT will replace id and
CustomField with the record id and custom field value, respectively.

Is that the only build in solution?

Can a bug be directly created from RT and ticket content pasted to Bugzilla
using current RT features? or some hacking is required?