How do I make a code for multiple “Next” and “Back” buttons on a dress up game? And how do I make the costumes change when I click on those buttons?

when this sprite clicked
next costume
if <Costume name = next> then
broadcast [ next]
end
if <Costume name = back> then
broadcast [ back]
end

This is what i would do :)

Each button is a separate sprite and will have its own code.

Let us look first at the “Next” button and “Back” button for Hats.
They will each need to broadcast a message to the Hats sprite.

when this sprite clicked
broadcast [Next Hat v]

when this sprite clicked
broadcast [Previous Hat v]

Now let us look at the code to actually change the costumes in the Hats sprite.

when I receive [Next Hat v]
next costume

when I receive [Previous Hat v]
switch costume to ((costume [number v]) - (1))

You need to make code like this for each pair of Next and Back buttons.

eg. broadcast Next Shoe, broadcast Previous Shoe
when i receive Next Shoe, when i receive Previous Shoe

I usually do it in one sprite