When you open TPG CoRePlanner, the General tab is opened by default. Most functions of TPG CoRePlanner are on this tab.
The Browse and Page tabs belong to SharePoint and are not used for TPG CoRePlanner.
There are three views for planning which can be accessed via the buttons in the Views group of the General tab:

Task: Main view for task planning. Shows the project tasks with assigned resources as sub-items
Matrix: Assignment of resources to tasks in a matrix view
Commitments: Shows the resource commitments made by the team managers.
➤ To switch from the Task view to another view, the project summary task must be selected.
The Settings tab and the Advanced tab are not yet active in the actual version of TPG CoRePlanner.