You did not say what the purpose of the report is but you can try this.
Under the File menu select Export. Make sure the box to include only linked individuals is not selected. Otherwise this will not work.
Choose Selected Individuals.
Include Ancestors and set the generations to 4.
Select Include Ancestors Descendants for One generation.
When I tried this the report included 148 individuals.
Next, Include Descendants. This brought my count of individuals up to 461.
You can now export the selected individuals and import them into a tree that includes only them.