[lennydizzy]

Any one know how do I search for a shortcut in different modes?

For example, 'ctrl-r' in normal mode means redo, in insert mode means paste from register. However ':h ctrl-r' only shows the help for normal mode.

[Watabou]

I linked that help topic in the article.

`:h help-context` tells you what you need to append for each mode. So for ctrl-r in insert mode would be: `:h i_Ctrl-r`