"Unlike the other two browsers, however, Konqueror also
provides a native way to split the current window (Firefox users
can use the Split Browser extension to get similar functionality).
This method is handy for displaying multiple webpages side by side.
If you use Konqueror as a file browser, it can also be handy for
displaying local and remote files in the same window. To split the
screen vertically, hit Ctrl-Shift-L. To split it horizontally, hit
Ctrl-Shift-T. Ctrl-Shift-R closes the selected split."