Can you be a bit more specific about which menu and buttons?? If I understand you question, you probably mean this, which is the opinions' cheat menu:
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If so, here's the rundown:
* Every girl in their own version of this, which shows how they feel about things
* the right side is normal opinions like colors, music, etc. the left side is for sexual things/kinks. these are the ones you also can discover when you "make small talk" to a person. knowing these will help increase the love during these small talks
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* the left side is for sexual opinions and shows what a person is willing to do during sex. If that person 'Hates' an act, that option will be greyed out during sex and you won't be able to choose it. Some fetishes are only possible if a person 'loves' an specific act.
* in this opinion cheat-menu you can change the opinions without having to use serums or other in-game interactions:
- the question mark '?' changes whether you discovered that opinion or not
- the "-/+" decrease/increase the value, meaning increase dislike or increase liking
- the X 'deletes' that opinion, meaning it revert it to 'no opinion'
You close the menu by pressing on 'opinions' in lower right corner.
I hope this is what you meant and that it's clearer now