If you select and insert only a single item, it is inserted into the
applicability expression as a range with infinity defined as the end of the range. The
applicability expression will be something similar to the following,
Selected Item
A <
, which means Selected Item A to infinity.
If you select two items,
they are inserted into the applicability expression as a range between the two nodes.
The applicability expression will be similar to the following, Selected
Context:Selected Item[A] OR Selected Item[B]
, which means a range between the
highest node in the context, Selected Item A, and the lowest node in the context,
Selected Item B.