TCC > Configuration > Initialization Files > Directives > Key Mapping Directives > General Input Keys:
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DelWordRight = Key
Default: Ctrl-R, Ctrl-Bksp
Deletes the word to the right of the cursor. See ClearKeyMap if you need to remove the default mapping of Ctrl-Bksp to this function.
See other General Input Keys.
Help URL: http://jpsoft.com/help/index.htm?delwordright.htm