Widget translation

Within widgets I am aware you can add strings of translateable via the xml - type="translatableString" 

however if I want to create  a widget with a large amount of ui compontents and strings I need to add a lot of translateable parameters to my XML. 

Without trying to sound lazy, is there not a means in which I could leverage the list of transalations from the modeler? 

I noticed that the login form uses a resource called I18NMap - https://github.com/mendix/LoginForm/blob/master/src/LoginForm/widget/LoginForm.js#L331

Is it possible to do a similar thing in other widgets? 

Thanks.