> +file+ gives me the full name of file in the text.
> +Label>file+ do the same.

That was a bug in 1.1.1. It works properly in never development versions.

If you want to go ahead and update to the latest version ...

- Update Magritte-Core, Magritte-Seaside, Pier-Core, Pier-Seaside to
the latest versions in that order.

- Then update all other Magritte and Pier test and addon packages to
the latest version.