Button demo 1.9pre
1. On load the 'Rerun' and 'Select' buttons were available as individual buttons.
2. Selecting 'Rerun' brought up a dialog.
3. Selecting 'Select' brought up a menu. Using arrow keys it was not possible to navigate the menu. Using tab and then arrow keys, it was possible to find
'open', 'save', 'delete'.
4. Selecting one of the menu options seemed to lock the window and it was necessary to switch windows and return to access the page again.
Needs further research.
Focus should be set to the menu when it appears, and using the arrow keys should change the active descendant. If this is currently being done then further testing is required and it may be necessary to set focus to each item in the menu as it is navigated to.