Hello,
Thanks for reaching out to us. Currently the only way is use category to specify the ID of your model as below.
A string specifying the category (domain) of the translation. This parameter is used to get translations from a customized system built with Custom Translator. Add the Category ID from your Custom Translator project details to this parameter to use your deployed customized system. Default value is: general.
I am checking with product group to see if there any roadmap about this or any workaround.
Sorry about that.
Regards,
Yutong