====Command data====
Commands are special kinds of data which perform an effect when they're placed in the passage.
Most commands are created from macros placed directly in the passage, but, like all forms of
data, they can be saved into variables using [[harlowe:set|(set:)]] and [[harlowe:put|(put:)]], and stored for later use.

Macros that produce commands include [[harlowe:display|(display:)]], [[harlowe:print|(print:)]], [[harlowe:go-to|(go-to:)]], [[harlowe:save-game|(save-game:)]], [[harlowe:load-game|(load-game:)]],
[[harlowe:link-goto|(link-goto:)]], and more.

Commands like [[harlowe:display|(display:)]], [[harlowe:print|(print:)]], [[harlowe:link|(link:)]], [[harlowe:show|(show:)]] and so on are used to print data or an interactive
element into the passage. These elements can be styled like hooks, by attaching [[harlowe:changer|changers]] to the macro,
as if it was a hook.

In addition to their visual appearance, you can also change what passage transitions links use,
by applying [[harlowe:t8n-depart|(t8n-depart:)]] and [[harlowe:t8n-arrive|(t8n-arrive:)]]. (Note that since normal passage links are identical to the
[[harlowe:link-goto|(link-goto:)]] macro, you can also attach changers to passage links.)