To install xkeycaps just follow these instructions.
sudo apt-get install xkeycaps
Which will install xkeycaps and any other packages on which it depends.
|Maintainer||Christoph Berg <firstname.lastname@example.org>|
|Description||manipulate X11 keymaps (for xmodmap) graphically like a keyboard; moving the mouse over a key shows what KeySyms and Modifier bits that key generates. Clicking on a key simulates KeyPress/KeyRelease events on the window of your choice. It is possible to change the KeySyms and Modifiers generated by a key through a mouse-based interface. This program can also write an input file for xmodmap to recreate your changes in future sessions.|