The Starbuntu program xbindings provides a graphical user interface for the hotkeys program xbindkeys and administrates the hotkeys valid in Starbuntu.

The advantage of this program over other existing GUIs for xbindkeys consists in the alphabetic order of the entries, of the labels as well as of the hotkeys. So you can quickly see, which process is connected with which hotkey, and check whether a specific hotkey is already in use. The hotkeys themselves can be either defined as text or simply typed. In the latter case they get automatically the right syntax.

The entries are saved in the text file ~/.xbindkeysrc, which gets accessed by the X-Programm xbindkeys directly.

Details for the usage of this program:

Find a row: Type in a substring belonging to the first column. If there are several hits, you can use the up/down keys to navigate to the row you are looking for. If you want to enter a substring for one of the other two columns, first click on "Search" and select the desired column.
Add / delete / duplicate row: right mouse button, then select option.
Edit label / action: click with left mouse button on the text, then edit and confirm with Return key. For the ampersand character "&" has to be typed "&".
The pattern of the hotkeys either is [modifier(s) (separated by '+')][+key] or [modifier(s) (separated by '+')][+mouse button]. Modifiers are Control, Shift, Super, Alt; mouse buttons are button1, button2 etc.
The valid identifiers of all keys can be detected with the terminal program 'xev'. In case the (semiautomatic) hotkey entry shouldn't be complete, the respective hotkey is already used in the system.
The hotkey may be left blank and typed only after 'OK' and the subsequent entry request.
By clicking the button 'Labels ↔ Hotkeys' the sort sequence can be switched. The sorting for the hotkeys complies with the last key of the respective hotkey entry. This method makes it easier to find out which hotkeys are already used. In case an already used hotkey is typed, a warning with a new entry request pops up.
The entries are saved in ~/.xbindkeysrc which is created with some basic entries if it doesn't exist yet. This file consists of an optional prolog with a '#' at the beginning of every line, then the actual definition block for the particular hotkey and finally of an optional epilog (again with a '#' at the beginning of every line).
The hotkey entries comply with the pattern:

# Label
"Action"
m:0xnn + c:nnn
[Modifier(s) (separated by '+')][+key]

or:

# Label
"Action"
m:0xnn + b:n
[Modifier(s) (separated by '+')][+mouse button]

'm' means modifiers, '0xnn' is the hex number of the modifiers' combination, 'c' means character (= normal key), 'nnn' means its key code (provided by xev), 'b' means (mouse) button and 'n' means its number.
When xbindings gets terminated by clicking 'Quit' all changes will still be saved in any case.

The most important (naturally changeable) hotkeys are:

Session Control:

Open the session control Ctrl + Alt + Del
Logout Ctrl + Alt + Escape
Hibernate Alt + Pause
Shut down Ctrl + Alt + q
Reboot Ctrl + Alt + w
Suspend Pause
Stop termination Ctrl + Backspace

Command Input:

Execute Alt + F2
Execute as root Alt + F2, then Super
Terminal Alt + F3
Terminal as root Alt + F3, then Super

File Manager:

Only for the normal user Ctrl right or: Super + left mouse button
With root privileges: Super + Ctrl right or: Ctrl + Super + left mouse button
Two windows (normal) Alt + Ctrl right
Two windows (root) Alt + Ctrl right, then Super
Open Storage Device Ctrl + Alt + d
Remote sources Ctrl + Alt + o
Trash bin Ctrl + Super + p
Object(s) to trash bin Shift + Del
Object(s) from trash bin Ctrl + Shift + Del
Empty trash bin Super + Del
File search Ctrl + Shift + f
Rename files Ctrl + Shift + r
Open marked files Super + Return
Marked folders Ctrl + Super + o
Mark folder Super + o
Open Group No. n Super + <n>

Software:

AppMenu Menu
Update AppMenu Super + Alt + Menu
OpenBox AppMenu AltGr + Menu
Default browser Ctrl + Alt + i
Second browser Ctrl + Alt + i, then Super
Search on the Internet Super + s
Save URL Ctrl + Super + u
E-Mail program Ctrl + Alt + m
Address book Ctrl + Alt + m, then Super

Desktop: ¹

Minimize all windows Super + d
Restore all windows Super + d
Repair the desktop Ctrl + Super + Escape
Next wallpaper Ctrl + Super + Right
Take a screenshot Ctrl + Alt + s
Center a window Ctrl + Alt + 5 right
Window to the edge Ctrl + Alt + 1|2|3|4|6|7|8|9 right
Window halfscreen Ctrl + Super + 2|4|6|8 right
Window quarterscreen Ctrl + Super + 1|3|7|9 right
App launcher new/edit Ctrl + Super + d

¹ All window manipulations are coded in $HOME/.config/openbox/rc.xml.

Sound:

Sound control Ctrl + Shift + k
Increase volume Ctrl + 8 right
Decrease volume Ctrl + 2 right
Mute volume Ctrl + 0 right
Unmute volume Ctrl + 0 right
Terminate music replay Ctrl + Del right

System:

Control center Ctrl + Super + k
Search application Ctrl + Alt + f
Printer settings Ctrl + Shift + d
Package manager Ctrl + Alt + p
Software update Ctrl + Alt + u
Task manager Ctrl + Escape
User processes Super + p

Others:

Starbuntu Help F1
Hotkeys Ctrl + Alt + k
Graphical program Ctrl + Alt + g
Memo Menu Ctrl + Alt + n
Marked text as memo Ctrl + Super + n
File Exposition Super + Menu
Url Exposition Alt + Menu
Save (marked) url Ctrl + Super + u
Url to other browser Ctrl + Shift + u
Calendar of events Ctrl + Alt + t
Text editor Ctrl + Alt + e
Text editor (root) Ctrl + Alt + e, then Super
Calculator Calculator key
Virtual Keyboard Ctrl + Alt + v
Insert primary selection Shift + Insert
Insert histor. prim. selection Super + Insert
Copy to sec. selection Ctrl + Shift + c
Move to sec. selection Ctrl + Shift + x
Insert sec. selection Ctrl + Super + Insert
Copy to clipboard Ctrl + Super + c
Move to clipboard Ctrl + Super + x
Insert clipboard Ctrl + v
Insert histor. clipboard Super + v
Clipboard values/history Ctrl + Alt + c

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