@andreiem I added a random sleep time before all the procedures started. The 1st thread starts. and then 2nd thread .. 3 and 4 5 ... Since they do not do the same operations at the same time, they do not consume much processor.
@heshamyassin1
We would like to see the waiting element until it has disappeared, but we haven't this feature as a function now . U need to construct the reverse logic. Watch this video to understand I've said. 0_1551655250089_sleep untill.mp4