Create MaskConfig not allowing name to change

[ChaitanyaVSK]

Hi,

I am working with masking, when i trying maskconfig POST call on an API proxy , in maskconfig  payload i have attribute called name (<MaskDataConfiguration name="default">). When i try to change the name of default to some other , managementAPI throwing 400 error. 

Is there any way to create multiple mask configs for a proxy with different names, and if not what is need for " GET /organizations/{org_name}/apis/{api_name}/maskconfigs" , which will only return "default".

And general question when we send text/xml we are receiving application/json. can we send json payload as well as maskconfig, if so what is the format.

And by any chance can we do partial masking like 8 of 12 characters in field without JavaScript.

Thanks