Adding breaks <br> to navigation elements

I need to make a navigation menu like this (notice the breaks):

Some text
here

Some more
text here

Other text
here

My question: how do I add
to a link?

Some text
here
Some more
text here
Other text
here

Does anyone know how to do this with Contao? It would be great if I would not have to resort to a custom template, so the client doesn't need to dig into that in case he needs to change something...

UPDATE: I have used str_replace('/break/','
', $item['link']); in the standard nav template, and in the Site Structure I added /break/ to the page name. This is ugly but it works. Any suggestions for a less ugly solution are VERY welcome ;)

It's possible to modify the field to accept HTML code, but that would likely break or look very ugly anywhere else a page label is referenced (i.e. in the back-end or a meta title).

If you just need it to wrap at a certain width -- instead of needing to specify exactly which words, maybe you can try doing this in CSS by limiting the widths of the navigation links, forcing them to wrap.

what about changing the field to accept a linebreak. (or replace /break/ with a linebreak char). The backend willh. ignore, but css in the frontend could be white-space: pre;