MDG Transformation vs. Link to element feature

[juraj]

I'd realy like to create links between attributes of generated class in my custom MDG transformation. Is it somehow posible? I find it useful for example for creatng Class<->DB property mappings.

How is this type of connection defined? I find out that it has something to do with StyleEx connextor attribute.
I tried to define StyleEx in transformation template, but it seems that tranformation doesn't know this connextor property.

Or do you know some better way to descripe connection between two attributes of different classes? (Role on ConnextorEnd doesn't works for me, as attribute name can be changed after transformation, and Role on connector doesn't change with it)

BTW. Link to element feature UI is realy unpleasant to use ... especially when you need to connect lot of attributes like I do...