Valid fiels for Components

Hi
I want to create a filed for my components where to put a scene, to read its name. I try this one
5201495--517241--upload_2019-11-22_9-32-20.png
But I get this
5201495--517244--upload_2019-11-22_9-32-50.png
Can you use Scene as field for components?
Thanks
Paolo

Now I get it
handle is the index number on the build index