RDP traffic information (Remote user logon and logoff) - There is an out of the box filter called 'Remote User Logons'. It is based on UserLogon.LogonType=*Remote*
Workstation Logon/Logoff - Windows does not generate a specific Event ID for workstation authentication. You would need to create a user defined group which contains all your workstations. You can then create a filter for UserLogon.SourceMachine = Workstations (your user defined group).
Administrative Use - You can create a filter to show all administrative logon, UserLogon.SourceAccount=*admin* (or integrate to your Domain Admins group in AD to capture authentication from any user within that group).
Users accessing drives/folders/files: LEM's File Integrity Monitoring may assist with this use case. There is an out of the box filter called 'All File Audit Activity'. You can adjust this filter to capture specific file types, file names, usernames, etc.