Extend function of Test and Approve

There is a 1-to-1 mapping between the Test and Approve item, and a custom group. Cannot select a dynamic group.

Can I please have

Ability to select a custom dynamic group for testing
Ability to use the same group for several test policies. Eg test critical security patches nightly; test important security patches weekly; both on the same set of machines. This may be achievable by giving the Test and Approve policy a customisable name rather than tying the name to the underlying group's name.
Ability to set a delay on the test. Similar to the Automate Patch Deployment's setting to delay the patch for x days after approval. eg only patches that were released 2 days ago.

Thank you