How can we Restrict Users to Access data on OTBI/UI, particularly to those projects they assigned ?

Summary:

We have created a Custom Role to the Senior Projects Managers to view access on OTBI from """How Can Non Project Managers Access Review Project Performance Dashboard? (Doc ID 2683212.1)""" following up the Doc. User is accessing the Data on all projects. Now we need to restrict the User to access the project related data which they are assigned. Need to know how to Restrict the access level only for the Projects which they assigned ? Can some one suggest the correct path to achieve this.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):