[Dirk gives a slight shrug (he doesn't really care either way) but Neil does bring in something Dirk actually does understand, so that's what he'll answer.] URSULA's limits are resources and knowledge. That's also what trips the droids up. You can help her with knowledge through detailed explanations. Given her mission statement's relation to knowledge, I doubt she'd mind hearing details on Exy.

The resources part is more difficult. I can teach the droids to understand what orange soda is like, but if we don't have anything on hand that can be used to make it, it won't make a difference. That's probably why the droid gave you a robotic fox. It had the resources for one, not the other. If you want an Exy field, you'll need to gather the materials for it. URSULA sounds like she cares about us humans getting our recreational needs met, so if you can find what you need, she'll probably do what she can to support you.