org-capture-templates with multi charachter keys

[Roland Everaert <reveatwork@gmail.com>]

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Hello,

Is there somewhere in the org documentation or on the internet a complete
example of using multi-character keys in org-capture.

This excerpt from the documentation is not clear to me :/

"The keys that will select the template, as a string, characters only, for
example "a" for a template to be selected with a single key, or "bt" for
selection with two keys. When using several keys, keys using the same
prefix key must be sequential in the list and preceded by a 2-element entry
explaining the prefix key, for example

                   ("b" "Templates for marking stuff to buy")

"

Moreover, can a prefix be composed of multiple characters or only one?

Thanks for your help.

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