It's not clear what level of detail you're looking for here. There's not got to be a plug-n-play solution listed on the FF site for your situation. The code you reference will hide an option of one set of radio buttons (or checkboxes or dropdown). You'll have to add code before that to listen for the change event on the previous select, get the selected value and then run the hide code if it matches your criteria (see here for a similar example). If you're not a developer or don't feel comfortable with jQuery code, you can always reach out to hire a developer.

I was hoping for some help if possible. There seems to be similar solutions to my situation therefore I was hoping someone could tell me what code to put where. An alternative maybe, this snippet seems to be what I'm after but it's for a radio button, can it be changed to use with a select field?https://www.fdmdigital.co.uk/slack-code-snippets-part-1/This snippet will show / hide a radio button option based on another radio button value.Thank you.