Thank you for writing in, we can help you with that, But would you mind to clarify what do you mean "functionality lacking compared to X"?
X and PRO are actually identically in terms of functionality and features. The difference is PRO has the Header and Footer builder, X has not.
Another difference is X has the Demos, while the PRO has the Design Cloud.
Other than that I don't see any significant between X and PRO feature. Please clarify your issue we might able to solve it without transferring back to X.