How to changea configuration setting in TinyMCE ?

Hello,

For personal reasons, I want to change one very precise TinyMCE setting for my wordpress blog, the absolute_urls setting.

TinyMCE’s website tells very clearly how to do it outside of wordpress :
https://tinymce.moxiecode.com/wiki.php/Configuration:relative_urls

However, I regret to say I have yet to find if there’s a way to hack or override the way WordPress uses his TinyMCE editor.

Please, could you tell me, if you know, if there’s a way for me to reach the configuration settings of TinyMCE in WordPress ?
I am ready to edit database entries or php code, and I don’t mind having to re-do it again with every WordPress update.

Thank you VERY MUCH if you can help me, I’ll be grateful ??

Best regards,
Sabinou