Ok, so in the capx the way you have it now the names of the animations are added to a string.
When pushing the buttons on the right the names are added to another string and those two strings are compared to see if the original sequence is the same as the user defined sequence.
The animations are triggered by setting the variable state to "show" and adding to the variable "showNumber" and using that variable to pick the right animation from the string with:
tokenat(showtext.text,stand.shownumber,"_")
So to make it work with userinput
you'd have to append to showtext the name of your animation followed by _
And when pressed play set state to "show" and add 1 to the variable "showNumber" every 3 seconds.
That's about it!
But it might be a wise choice to try and create these actions with events you can understand, instead of using the capx as is.