Make a Escalator

Hello, I have tried to make a Escalator Skript by my own.

My Progress so far:

Now I need to spawn my X amount of Elements on Time with a Specific Delay to fill the complete Escalator . Ive tried forLoop & Tick based Event but the results wasnt that good. The Elements where not on Time or the tick resets the Macro.

Any Ideas? It may be simple but I cant find a solution. BTW Sorry for my bad English but its 3:30am right now in Germany.

greets Kiliangg