An expert handler will know to handle specialized content in both a read-only and an editing scenario using three conditions:
1. level of granularity,
2. mode of input/output, and
3. which item (first, last, previous, current, next);
Read-only:
1. the AT responds a Point of Regard change event, using the role of the object which received focus
2. the AT fetches accessibility information pertinent to that role and then formats/outputs a response tailored to an AT user
Editable content:
separate cursors are needed:
a) one to remain at the POR (the caret, if editing), and
b) one to move around for review purposes