Reset stylus can be on right stick press. Your hand will already be on the right stick if you’re doing stylus things anyway (on DS you can’t use ABXY well if you’re holding the stylus in your right hand)

That'd be a great solution. Also maybe we'll get a horizontal mode that puts the two screens side-to-side like what the Castlevania DS that came out a few months ago or the Megaman Battle Network collection did if you see what i mean