Hiding multiple elements at once

[tony-brunsman]

@decadthelena You can separate the elements by commas like this:

export function btn3_click(event){
    $w('#step3,#Bimg3,#btn4').show()
    $w('#step2,#Bimg2,#step1,#Bimg1,#btn3,#btn2,#btn1').hide()
}