Hi @Kun Deng
I am developing the KeeBoord plugin, so don't hesitate to ask anything about it
As far as I can tell, these links don't have the KeeBoord plugin installed (see under $:/ControlPanel > Plugins)
TiddlyWiki has a built-in keyboard-shortcut mechanism which works without installing plugins, but it only works within the text editor.
To create a keyboard shortcut that works with a slideshow plugin, one would have to identify the action (for example the action to go to the next slide) and put that action in a tiddler with the tag "$:/tags/KeyboardShortcut".
Then that tiddler needs a field "key" with a descriptor. The descriptor should be written between (( and )) like : ((next-slide))
After that, create a tiddler "$:/config/ShortcutInfo/next-slide" , go to the ControlPanel > Keyboard Shortcuts and look for "next-slide". There you can define the key combination that triggers the "next-slide" action.
hope this helps,
BTC