Frame set or similar alternative?

Hello,

Pretty new to WordPress and hailing from the old Notepad technique of web building and have got myself stuck.

I am creating a website for my photography business and am trying to create my FAQ section and similar to it a “products”.
Both the FAQ and Products are broken up into categories.
I want the menu of categories down the right hand side of the page which when clicked, open the relevant category of information in the left hand side of the page.

I would have done this in a frameset but everywhere I’ve looked for help i’ve got answers of “Don’t use frames” or “wordpress doesn’t support frames”.
Any information I do find on using frames in wordpress seems to be frames from external websites, which is not what i want.

I’m using GoDaddy’s managed WordPress thingy and the help section led me here.
Can anybody offer any help or suggestions for how I can do this with frames or an alternative?

Thanks