Hi Maurice!

When you set a filter, you should be able to save it as a view by clicking on the tile with the three dots at the top right of the list and selected "Save as" in the menu that opens. In the ensuing dialog, you can define the name for the view , make it public (i.e., visible for all users) and add it to favorites (it will sit in a Favorites section at the top of the sidebar on the left).

AFAIK, you cannot limit access to those views to a selct group of users or a user group. However, I would imagine (withouthaving tested this) you would achieve the desired effect with the following steps:

• create an umbrella project for all the projects you want to report it (i.e., have the latter be on the lower levels of a hierarchy openend up under the former)
• define your views in that project, ensuring that they include all lower-level projects in the filter settings
• add the project managers you want to have access to the views as members for the umbrella project

I hope I understood your challenge correctly and this helps!