Bring Fiddler Classic to the foreground. Hotkey may be adjusted using Tools > Options

Focus the Web Sessions List

Activate the QuickExec command line, allowing access to many more functions from the keyboard

Find sessions

View Header Inspector

View TextView Inspector

Select prior session

Select next session

Select all sessions

Invert selection of sessions

Clear Session List

Reissue request (Hold Shift + R to reissue multiple times)

Reissue request unconditionally (Hold Shift + U to reissue multiple times)

Find parent of session (using referer)

Find children of session (using referer)

Find duplicates of session (based on URL)

or INS   Mark/tag session in red

Mark/tag session in blue

Mark/tag session in yellow

Mark/tag session in green

Mark/tag session in orange

Mark/tag session in purple

Unmark session

Go to previously selected session

Delete selected sessions

Delete unselected sessions

Scroll selected session into view

Copy the active header to the clipboard

Edit the active header. (When the a session is paused, the headers are editable (note the white background))

Remove the active header

Add a new header. Note that it doesn't matter what grouping you put the header under; the groupings are for reading convenience only.

Go to line #. (Disables word wrap)

Find next

Go to byte