So firstly, you make a variable, for example, name it something like “timer”, and then put [set (timer) to (0)] in the on start container, then grab a forever loop from loops and put inside it [change (timer) by (0.01)] and [start countdown (timer) (s)] and then grab a “on countdown end” container and put nothing inside it!
Also if you do line code put this:
info.onCountdownEnd(function ( ) {
} )
let timer = 0
forever(function ( ) {
timer += 0.01
info.startCountdown(timer)
})