You ask some expert "How do I do X with Y?". He'll tell you. He'll likely wonder what the hell you're up to in doing such a strange thing with Y, but he'll answer.

Also in the event you get an unusually helpful expert, he might point this out. Consider this your lucky day and feel free to ask follow up questions. Don't be discouraged by the pointing out being phrased along the lines of "What kind of idiot would want to do X with Y?"