Custom text for "Read more link"

Hi,
Regarding blog article layouts, I expected the 'read more link' element to give full control over the link management, both for styling and the button text itself.
However, the link text can only be modified via Joomla's language override. This creates a limitation if I want to have different buttons with different link texts, since there is only a single global constant for the 'read more' string.

Do you think it is possible to implement full control over the 'Read more link' button?

Thanks,
Lorenzo