Perform a find directly in the object browser without having to execute your own code
Frequently, I run into problems where my find()/find_child()/find_child_ex()/etc.. calls are finding the wrong objects (sometimes its hard to find uniqueness within the objects you have at your disposal). It would be AMAZING to have a 'finder' tool directly in the object browser that would allow you to pick an object to perform a 'find()' call on, give a form to fill in props and values and it would give you the object (or objects) that it is matching against without having to run any of your own code. It's good to know right off the bat if your props and values are mapping to the object you expect. I could see it saving me a whole lot of time when developing test scripts.