Hi @Kak Tak ,
Regarding the question of how to create item in 1 list and automatically copy it to all lists, use "When an item is created" as the trigger condition, and then create several corresponding "Create item"action for which lists you want to copy to.
You can also refer to this thread: https://powerusers.microsoft.com/t5/Using-Flows/Copying-one-SharePoint-list-items-to-another-SharePoint-list/td-p/973343
Also, don't forget to repost another thread of yours, we'll fix it for you quickly.
Have a nice day!
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.