We need a custom defined role to perform specific functions in the OPS Manager. For Example --> We need a custom defined role which can perform subset of functions from Project Automation Admin Role + Project Read Only Role + rs.stepDown() functionality Project Automation Admin Role: ------------------------------------------ View deployments. Provision machines. Edit configuration files. Download the MongoDB Agent. + Project Read Only role. Project Read Only Role: ------------------------------- Activity Operational data Ops Manager Users Ops Manager User roles. ** This feature becomes very useful to contain the access of certain privileges and to have the flexibility tailormade privileges instead of giving the access to entire system defined role.