This will help you to find the features you are looking for. Most of the features only visible in Edit mode
Looker Studio Home Page
Report Title
Publishing settings.
Menu title
Undo and Redo
Mange pages
Add data
Add a chart
Add a control
Image
Text
Line
Shape
Reset: Reset filters and other selections that you've made
Share: Add people and Manage access
Share drop-down arrow
View
Ellipsis (⋮) or Three dots or More options
Help
Google Marketing Platform Home
Your Google Account > Add an account > Manage account > Sign out