Little big planet 2...two questions?

so i have made a cooperative level(race) couldnt make versus as if one player died, he could spawn again. i wanna know if we can change the size of the checkpoints or even hide them(they hav to stay hidden if i publish the level), or if a player dies at a spot, he could respawn at the same location or a little back. 2nd question is- Ive placed a scoreboard at the end of the level. and ive selected a few prizes for the "level aced" option. when i change to play mode and complete it, irrespective of how many prize/score bubbles i collected and how many lives i lost, the scoreboard shows 100% as my score and i get the rewards for "level aced".......and it doesnt show my score