Hi @Farid_Farkhadov, to share a JSON payload on the forum you want to use this button on an empty line:
This will add a snippet consisting of three backtickts wrapped around type or paste code here
:

Simply replace type or paste code here
with your actual JSON code and the forum will render your workflow.
As for getting all values in a single list after a loop you might want to check out this example workflow:
This will leave you with one list consisting of multiple items. If you want a single item with an array you can add an Item Lists node at the end like so:
Full workflow:
Hope this helps!