mblock arduino multiple LED blinking

#1

Hello, I want to burn multiple LEDs with loop but I can not run it. Where am I doing wrong? Thank you

Screenshot_1
https://www.youtube.com/watch?v=svOOyDbgVtc&feature=youtu.be

#2

How about trying some change as below
image

#3

did not work, thanks.
https://youtu.be/sKpIHoEslmI