Use this shortcut to...
Close Active Tab
Close an active tab in a tool window (for example, Find tool window).
Close an active editor.
Open an editor for the selected item or items and give focus to the last opened file.
Depending on the context:
Export to Text File
Export contents of a tool window to a text file. This feature applies to the Git tool window Alt+9 and the other tool windows that provide the export button on the window toolbar.
Create a new class, file or directory.
Save all files and settings.
Select Next Tab
When several tabs are open in the editor or a view, open the next tab to the right (or first tab if the current one is the last).
Select Previous Tab
When several tabs are open in the editor or a view, open the next tab to the left (or last tab if the current one is the first).
Show Intention Action
Display intention actions (if any) for the code where the caret is currently located, or the selected GUI component in a form.
Reload All from Disk
Detect all externally changed files and reload them from disk.