Request: The ability to search for sub-tasks attached to a particular issue type and the ability to toggle inclusion of sub-tasks when searching on a particular issue type

JIRA would be much easier to use if users could perform the following:

1) Search for all sub-tasks of a given issue type. For example, the ability to search for all sub-tasks of bug related issues. Currently when searching we receive sub-tasks of all kinds of issues.

2) The ability to toggle inclusion of sub-tasks when searching for issue reports of a given issue type. For example, if generating a report (or even just browsing a list) of all open enhancement requests, it would be helpful to have the ability to include all open sub-tasks of these enhancement requests in the same report.