Each time a widget (Datagrid 2, Combobox etc.) is being used the (design) properties needs to be configured as per company/app conventions.
It would be really helpfull being able to configure defaults for widget (design) properties.
When defaults can be configured on project level or maybe even better as part of a design system (UI resources module), this definitely will improve consistency and development time.
Sure deviation might be needed on certain use cases but most of the time certain defaults are being used.
Yes, that's true but when for example an enumeration or associated attribute is being dragged on a page then a combobox is automaticaly added with the deault properties.
You can make it a building block.