Hey, Since nobody replied, I thought it would be nice to put an answer here.
I really understand that you don't get a thing with Moghunter's scripts. Neither do I.
What you may wanna do is doable with eventing.
First, you create an array with every combination of your thing. A bit like this: $game_variables[n]=[d1,t1,d2,t2...]
d being the direction/ button to use (up, down, left, right, whatever) that you can manage using a number. 1 for down, 2 for right, 3 for up, and so on (I recommand you follow the order given by the dropdown menu in the 4th page of the conditions ( "the button "lalala" is pressed" ) so that you wont get lost if you forget what number is what (or just do a comment above).
t being the time you wanna wait (in frames) before going to the following button
Then you create a loop with two other variables. Let's call them T and I. Also create a switch
First, you set I to 0 and activate your switch
Start of the loop:
You check if the switch is active
Then, you check what number is in $game_variables
using conditions
You process it
You disable your switch
You add 1 to I
You set T to $game_variables
Wait 1 frame
End of the loop
In a separated parallel processed event, you check if the switch is disabled, if so in a loop, set a condition:
Start of loop:
If T > 0 then
substract 1 from T
Else
activate the switch again and break the loop
End if
Wait 1 frame
End of loop
That's all you should need to make your system work properly, the only problem beeing the fact that you have to first enter manually all array variables that will contain your DDR composition (i recommend you do that in an empty "loading" map that you go through before getting in the game (you could put a parallax where it says loading, and then in a single automatic event, you create all your vars so if you need to change one, you'll juste have to go here, and then teleport out of the map))
For any request about arrays in variables look in there: http://forums.rpgmakerweb.com/index.php?/topic/16541-intermediateadvanced-game-variables/