As a general feature, this is not possible.
Without installing the mod, I don't see how you could know how many times input will be requested, let alone what the mod will do with that input.
(Consider a component that checks if you have NPC X installed. If you do, it asks "Do you want to modify NPC X?". If you input "Yes", it asks additional questions. Then it checks if you have NPC Y installed, and does the same thing.)
Plus, even if this could be done for your particular example, all you would learn is that the component accepts options "1", "2", "3", "4", and "5". That doesn't tell you what those options mean. To determine that, you would have to look at the code or read the readme.