URLRewrite and OpenCMS

[Luis]

We need to use short URLs for the cover of books indicating the
location of accompanying material (files, data sheets ...)

We have OpenCMS as Content Manager. When we use URLRewrite, CMS
disables editing advanced properties of the contents.

I look for that issue in the group but I have not found anything.

Is there someone who has had this problem? How did you solved?
Thanks in advance.

Luis