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TMS570LC4357: How to disable Power Domains in OTP?

Part Number: TMS570LC4357


Hi experts,

We want to to disable Power Domain 4 (PD4) and possibly PD2 permanently. Or if possible set the default configuration of  PD2 and PD4 to <off>,
The Technical Reference Manual states that Power Domains can be permanently disabled in the TI-OTP sectore (Section 5.3.3).

(Q1) Is there a way we can program the TI-OTP ourselves, so that these Power-Domains are disabled? 

(Q2) If it is possible for us to disable PD4 and PD2: What would we have to do?

Thank you and best regards,
Max