puhhh, I'm ready with the programmings.
Had done greater changes to jwm, so that
the Hotkeys for the Window-menu can be
defined in .jwmrc.
And, additionally jwm shows Hotkey-letters
in the Win-meny, they also can be defined
in .jwmrc.
This all should work if you, or if you not
use gettext-transations for your system.
(I can't test it under US-Language, where
no gettext is needed).
In the pet at the end of this post there is
also /usr/share/doc/jwm_withWinMenuKeys.txt
with content:
this ist compiled in FossaPup64
from the source of jwm_2.4.2.orig.tar.xz
out of archive.ubuntu.com.
The only changed thing is,
the Window-menu now react to keyboard,
and the individual definable Hotkeys
are showed in the Window-menu.
Individual means, you can define
them in /root/.jwmrc or in a rcfile
which is included in /root/.jwmrc
whereby the acting hotkey and the
get showed letter for it have to
be defined separate, in two lines
for every case.
Here a selfexplaining example
(as it works on my german FossaPup64:
<?xml version="1.0"?>
<JWM>
<TitleButtonOrder>ximtw</TitleButtonOrder>
<!-- (start xev in console, 2 windows get opened,
hit a keyboard key (with active white window),
in the second window third line you'll see the keycode)
------------------------------------------------------- -->
<!-- the keyboard hotkeys in the window menu -->
<WinMenuKeyMaximize>58</WinMenuKeyMaximize>
<WinMenuKeyMaximizeX>53</WinMenuKeyMaximizeX>
<WinMenuKeyMaximizeY>52</WinMenuKeyMaximizeY>
<WinMenuKeyMinimize>57</WinMenuKeyMinimize>
<WinMenuKeyRestore>25</WinMenuKeyRestore>
<WinMenuKeyClose>39</WinMenuKeyClose>
<WinMenuKeyMove>55</WinMenuKeyMove>
<WinMenuKeyResize>42</WinMenuKeyResize>
<!-- the characters showed as hotkey in the window menu -->
<WinMenuCharClose>s</WinMenuCharClose>
<WinMenuCharMaximize>m</WinMenuCharMaximize>
<WinMenuCharMaximizeX>x</WinMenuCharMaximizeX>
<WinMenuCharMaximizeY>>y</WinMenuCharMaximizeY>
<WinMenuCharMinimize>n</WinMenuCharMinimize>
<WinMenuCharMove>v</WinMenuCharMove>
<WinMenuCharResize>g</WinMenuCharResize>
<WinMenuCharRestore>w</WinMenuCharRestore>
<!-- ----------------------------------------------------- -->
<RootMenu label="Menu" labeled="false" height="24" onroot="3">
.
.
.
.
.
Make a copy of your .jwmrc ( cp /root/.jwmrc /root/.jwmrc_original )
Open your /root/.jwmrc with the text-editor (geany?),
copy here the lines between the --------,
paste them in your .jwmrc anywhere,
edit the values to your whishes
and save the edited .jwmrc.
Restart X
(for that I'm used to close X with Keys leftStrg+leftAlt+Backspace,
in the console hitting xwm and Enter starts X again,
the new /usr/bin/jwm gets used. )
If you also like the Hotkey combination leftAlt+Space to open
the Windowmenu of the active window, you additionally have to
add a line (<Key mask="A" key="space">window</Key>) in /root/.jwmrc:
<Key mask="A" key="Tab">next</Key>
<Key mask="A" key="F4">close</Key>
<Key mask="A" key="F10">maximize</Key>
<Key mask="A" key="F6">minimize</Key>
<Key mask="A" key="#">desktop#</Key>
<Key mask="A" key="F1">root:3</Key>
<Key mask="A" key="F2">window</Key>
<Key mask="A" key="space">window</Key>
hint: there is a Hotkey combination for that already in Fossapup64: leftAlt+F2
Here a screenshot what is ment:
and here is the pet:
http://eastler.de/tmp/jwm-2.4.2_WithKey ... Binary.pet (91.31 KB)
again thanks to Burunduk, because of using newer Sources and added more programmcode your lines aren't necessary, but your hints were very helpful. A remark to them is, if you define Hotkeys in jwmrc as you showed, they are active every time, in/on other runnig windows. Thatswhy i had programmed in special code, which only listen to keyboard, if the window-menu is the active window.
@Jasper: pay attention, this new pet-link points to the same filename as the first I gove, but its a newer/other pet now. Take it, test it ad hopefully have fun. If you find something going wrong, please give me a hint here 
Hope this helps some people
Eastler
