I want to go down the arrow, what should I do?

[LeeJaeYoung]

Q1. I think the red line on the left should appear on the plane.
However, it does not appear and the lines above the red line appear when they should not appear. What should I do?

[Barry Kelly]

@LeeJaeYoung ,

You really should ask just one question per post rather than 5 different ones.

That way, as they get answered, they will be easier to follow an not get all mixed up.

Barry.

[LeeJaeYoung]

Except for number 5, the rest are questions about the stair tool.
Should I separate them one by one though?

[Barry Kelly]

They are all about the stair object, but they are all different questions which will be hard to follow if people start to answer bits and pieces.

So best if they are separate questions.

Also the title "I have a question about stairs" is not very informative.

Best if the title is related to the question being asked.

Barry.

[LeeJaeYoung]

I split it all up.^^