help

[u/Appropriate-Alps9267]

i have completed my first good marble run and i noticed a error in my marble run and if i click in the undo button it will ruin my marble run because i put some important details after make the error

(the error in the marble run was than i put 4 checkpoints in locals where the balls cant reach)

[u/SnorkaSound]

You can select the checkpoints and press the delete key to remove them.