To define what to display to the Pentester Portal and to the Client Portal, just open the pentest settings and apply as below:
Tabs visible in Pentester portal
Select tabs visible to the pentester portal from the list:
Display Previous/Next finding buttons
Check this settings for the Previous and Next buttons to be displayed when open a finding:
Columns Settings Pentester Portal
Select the columns you want to be displayed to the Findings grid of the Project, drag each field to reorder and define the default sorting:
The same settings can be configured to the Client Portal as well.
Here you can also enable client users to upload files into Files of the project and define the type of findings the client users can report from the Client Portal.