Steps to Create a Report-Level Filter on Looker Studio
Navigate to Intentwise Analytics Cloud
Go to Dashboard Templates in the left menu, select a template, open it with Looker Studio, and create a copy.
Click on File > Select Report Settings
On the right side, go to the 'Report Settings' tab > Click on 'Add A Filter'
Click 'Create A Filter' in the right menu of 'Filter Picker'
A new tab will appear. In the 'Create Filter' tab, enter the necessary information. You can create a filter for one or multiple accounts.
Grant access to your report with 'Viewer Access'