Sort files in the active panel by extension

`Ctrl` + `F4`

All hotkeys for WinSCP

Common Panel commands Change active panel	`⭾ Tab`
Navigation Re-read panel	`Ctrl` + `R`
File management Download (when remote panel is active) or Upload (when local panel is active)	`F5`
Navigation Open parent directory	`⬅ Backspace`
Navigation Open parent directory	`Alt` + `↑`
Navigation Open root directory	`Ctrl` + `\`
Navigation Open home directory	`Ctrl` + `H`
Navigation Go back	`Alt` + `←`
Navigation Go forward	`Alt` + `→`
Navigation Open path change menu for left panel	`Alt` + `F1`
Navigation Open path change menu for right panel	`Alt` + `F2`
Navigation Bookmark current directory	`Ctrl` + `B`
Navigation Display bookmark window	`Ctrl` + `O`
Navigation Display bookmark window	`Ctrl` + `L`
Navigation Display bookmark window	`Alt` + `D`
Navigation Toggle tree panel	`Ctrl` + `Alt` + `T`
File selection Select/deselect file	`Insert`
File selection (numpad) Select group	`+`
File selection (numpad) Deselect group	`-`
File selection (numpad) Invert selection	`*`
File selection Select all files	`Ctrl` + `A`
File selection Deselect all files	`↑ Shift` + `Ctrl` + `L`
File selection Restore selection	`↑ Shift` + `Ctrl` + `R`
File management Rename focused file	`F2`
File management Edit focused file	`F4`
File management Edit (create) new file	`↑ Shift` + `F4`
File management Edit focused file in an internal editor	`Ctrl` + `Alt` + `F4`
File management Download (when remote panel is active) or Upload (when local panel is active)	`Ctrl` + `K`
Selected files Duplicate selected files (remote panel only)	`↑ Shift` + `F5`
Selected files Download (when remote panel is active) or Upload (when local panel is active) selected files and delete original	`F6`
Selected files Move/rename selected files (remote panel only)	`↑ Shift` + `F6`
Selected files Add/edit link	`Alt` + `F6`
Selected files Create new folder	`F7`
Selected files Delete selected files	`F8`
Selected files Delete selected files	`Del`
Selected files Delete selected files (alternative)	`↑ Shift` + `Del`
Selected files Change properties of selected files	`F9`
Selected files Change properties of selected files	`Alt` + `⤶ Enter`
Selected files Paste files, open path from clipboard, opens session URL from clipboard	`Ctrl` + `V`
Session management Close active session	`↑ Shift` + `Ctrl` + `D`
Session management Close active session	`Ctrl` + `W`
Session management Open a new session	`Ctrl` + `N`
Session management Cycle opened sessions	`Ctrl` + `⭾ Tab`
Session management Cycle opened sessions	`↑ Shift` + `Ctrl` + `⭾ Tab`
Session management (Alt + 2, Alt + 3...) Switch to other open session	`Alt` + `1`
Service commands Toggle synchronized browsing	`Ctrl` + `Alt` + `B`
Service commands Compare files in panels	`Ctrl` + `C`
Service commands Open current session in PuTTY	`Ctrl` + `P`
Service commands Open Preferences dialog	`Ctrl` + `Alt` + `P`
Service commands Process queue	`↑ Shift` + `Ctrl` + `Q`
Service commands Toggle automatical refresh of remote directory after operation	`Ctrl` + `Alt` + `R`
Service commands Synchronize directories	`Ctrl` + `S`
Service commands Keep remote directory up to date	`Ctrl` + `U`
Service commands Open terminal window	`Ctrl` + `T`
Service commands Quit	`F10`
Service commands Quit	`Alt` + `F4`
Service commands Find file	`Alt` + `F7`
Service commands Find file	`F3`
Service commands Cancel reading of remote directory	`Esc`
File panels Sort files in the active panel by name	`Ctrl` + `F3`
File panels Sort files in the active panel by extension	`Ctrl` + `F4`
File panels Sort files in the active panel by modification time	`Ctrl` + `F5`
File panels Sort files in the active panel by size	`Ctrl` + `F6`
File panels Sort files in the active panel by attributes/permissions	`Ctrl` + `F7`
File panels Sort files in the active panel by owner (remote panel only)	`Ctrl` + `F8`
File panels Sort files in the active panel by group (remote panel only)	`Ctrl` + `F9`
File panels Insert names of selected files to command line	`Ctrl` + `⤶ Enter`
File panels Copy names of selected files to the clipboard	`↑ Shift` + `Ctrl` + `C`
File panels Copy names of selected files including paths to the clipboard	`Ctrl` + `Alt` + `C`
File panels Copy current local path to the clipboard	`Ctrl` + `[`
File panels Copy current remote path to the clipboard	`Ctrl` + `]`
File panels Toggle hidden and system files displaying	`Ctrl` + `Alt` + `H`
File panels Filter files	`Ctrl` + `Alt` + `F`
File panels Open current directory in Windows Explorer (local panel only)	`Ctrl` + `Alt` + `E`
File panels Show/focus command line	`↑ Shift` + `Ctrl` + `N`
File panels Focus queue view (when visible)	`Ctrl` + `Q`