Screen customisation Plugin

Hi,
We are using ProjeQtOr in our society, and we find it really strong, but in some projects, mostly "Electronic Document Management" projects, we need some more informations, such as "total number of pages" that should given, "number of pages completed" and "the remaining pages" that shoud be calculated as it is with days, and that aslo in the "imputation page" and the "main dashboard".

I want to know if the "Screen customisation Plugin" could help as do that ?
Is it to possible to customize the "imputation page" to change the unit of mesure of imputation to "pages" despite of "days" if the project is a "Electronic Document Management project"?

Thank you !!