Create a search field on the Journals homepage

Describe the problem you would like to solve
Dear, We have a question: on the Milano University Press journals website, the homepage of each journal has a search field, but there is not a general one.

Describe the solution you’d like
We were wondering if it would be possible to implement a general search field on the homepage that would allow us to search all journals.
Please let us know if it is possible to add this feature.

Who is asking for this feature?
Milan University Press Journals Support Office

Additional information
Add any other information or screenshots about the feature request here.

You can use Site Search Plugin for this feature: Overrides the public search functionality to act at the site level instead of within the context.