Hi Eliot
On the DITA Help Subcommittee, we've been discussing a metadata element to
contain context hooks for context-sensitive user assistance (Help)
applications. The element (we're calling it ua-context) might be defined in
either the map or the topic. We've realised we have a need for an attribute
to specify whether a context hook in the map takes precedence over a hook in
the topic, as we could envisage scenarios where either would be a user
requirement. Our first cut of the name for this attribute was
@yield-to-topic, which would only be used in the map topicref topicmeta. The
default would be false, meaning the map trumps the topic.
An example of mark-up within a map's topicref topicmeta might be:
