----prompts for Stair U-shaped
Stair starting point is on [Left/Right] side? <Right>: 
ӱ_IOa [(L)/k(R)]? <k>: 
Starting point: 
_I: 
Stair width <
ӱe<
Total tread number <
`@<
First run tread number <
Ĥ@q<
Second run tread number <0>: 
ĤGq<0>: 
Second run distance <0>: 
ĤGq(x)<0>: 
Tread depth <
Ų`<
draw [Front/Back/Left/Right/All/No] elevation? <All>: 
eX [(F)/I(B)/(L)/k(R)/|(All)/L(No)] ߭? <|>: 
In order to not interfering with plan, set proper layer befor drawing elevation!
F߭zZ쥭,beeХ]wAϼh!
Stair height <
ӱ谪<
Slab thickness <
ӪOp<
Distance from plan <
߭PZ<
----prompts for Break Line
First point: 
Ĥ@I: 
Second point: 
ĤGI: 
Breaking gap percentage <
_ʤfʤ<
Mirror breaking line? [Yes/No] <No>:
gu? [O(Y)/_(N)] <_>:
----prompts for Arrow Line
From point: 
_I: 
Percentage 
ʤ(Percentage) 
Arrow size <
bYjp<
