The <substeps> element allows you to break a step down into a series of separate actions, and should be used only if necessary. Try to describe the steps of a task in a single level of steps. If you need to use more than one level of substep nesting, you should probably rewrite the task to simplify it.
(substep) (one or more)
|Name||Description||Data Type||Default Value||Required?|
|%univ-atts; (%select-atts;, %id-atts;, translate, xml:lang)||A set of related attributes, described at %univ-atts;||parameter entity||PE not applicable||Not applicable|
|%global-atts; (xtrf, xtrc)||A set of related attributes, described at %global-atts;||parameter entity||PE not applicable||Not applicable|
|class, outputclass||Common attributes described in Other common DITA attributes|
<substeps> <substep><cmd>Hold pencil in a steady, level position.</cmd></substep> <substep><cmd>Turn handle until resistance diminishes.</cmd> <info>Note: initially, it may be somewhat difficult to turn the handle if pencil has never been sharpened before.</info></substep> <substep><cmd>To determine if pencil is sharp, remove it from the sharpener and inspect the tip.</cmd></substep> </substeps>
OASIS DITA Language Specification v1.0 -- 09 May 2005
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