H3- is there a way to...?

[RubyQuinn]

I'm a little rusty at this game, so I've forgotten- the obelisks reveal parts of a buried treasure map, right? Is there a way, when customizing your own map, to designate where that buried treasure is, rather than it being random? If so, could someone pretty please explain it to me? Thanks so much :)

[Pol]

Sure, between items there's placed grail. And you can set radius upon it.