using fluxbox i thought to share a couple keymappings which I had to concentrate well to ponder
which resulted in
have a toggleable backslash insert key
Prior/pageup being the minus/underscore key
Next/Pagedown being the plus equals key
and in fluxbox keys file would call the toggle scripts
like so
Shift F1 :ExecCommand xmodmap /home/user/mapping/pigups2.map
Shift F2 :ExecCommand xmodmap /home/user/mapping/ctrlo2.map
so if you would need the backslash or | key -, underscore, plus and equals keys then you would need to press shift F2 once again
and to revert back Shift F1 to summon the basic surf keys and insert key.
I believe it works with just this otherwise it gives an idea to get set with at least this.
$this->bbcode_second_pass_code('', '$ cat pigups2.map
keycode 20 = Prior
keycode 21 = Next
keycode 51 = Insert
')
$this->bbcode_second_pass_code('', '$ cat ctrlo2.map
keycode 21 = equal plus equal plus
keycode 20 = minus underscore minus underscore
keycode 126 = plusminus NoSymbol plusminus
keycode 51 = backslash bar backslash bar
keycode 51 = backslash bar backslash bar
keycode 94 = less greater less greater bar brokenbar bar
')
being an exclusive fluxbox user, kde does this all from the gui setting menus too. I actually never put kde on here yet.