Firebase database list keys child name using Cloud variables

How can I edit the tags (paths or child tags) of a list in a Firebase database using Cloud Variables?

I would like to use cloud variables instead of Realtime DB, but when I set the list it comes up with automatic numbers from “0” onwards. I need to rename them with “Name inputs text”

It would be the same thing to use the field “key” using Realtime DB, but I would like to do it through cloud variables.

I here attach two screenshots to make it clear. Thanks in advance for your help.

Anyone can help me with this issue?

i don’t think you can control.

if you want to use the variable as a list, i think it should be sentenced as numbers starting 0.

don’t know why but i think it is the rule.