Understanding "ledmap":0 vs ledmap.json

Looking through documentation and not finding what I want regarding “ledmap”:0.

I downloaded an API and found “ledmap”:0 at the end. I also found documentation how to create ledmap.json file to remap the leds.

Q1 : can there be more than one ledmap.json file, like ledmap1.json, ledmap2.json and then referenced in the API as “ledmap”:1 or perhaps ledmap":2 and so on.

Q2 : is there documentation regarding “ledmap”:x declaration in the json documents?

Than ks

Check the KB: Ledmap

Multiple maps are supported in the latest versions by using ledmapx.json where x is a number. Maps can be selected in a preset using {"ledmap":x,....

Thanks for the quick response.
So with no ledmap.json file and the reference to “ledmap”:0 in the peset works because it is the default map implying the natural led order?

ledmap 0 is a default ledmap (ledmap.json) that is loaded at boot.
If the file does not exist it means physical order of LEDs.