Hi,
I have flow witch take all attachement from SharePoint list, and create new file in the desired library. Than the item of SP list is deleted. You can see current flow below.

This flow is based on some community solution. It retrieve all attachements, then content of it and after that create new file in desired library.
But now is my problem which I need to find solution. When MS flow create file, author of new file is author of the flow. But I need change author to original author of file.
Is there any other way how to modified this flow ? Maybe moving attachement to library and no create new one? Or some way how to update flow property (I mean author property)? The update file property doesn't possible to change author property of file.
The only way I can think of at the moment is, that create the same field as Author field, and then use update file property and set it. But I think this is not elegant way how to solved it.
Can anybody give me advice? Thanks a lot.