Allow user to select if they are rolling up to an initiative created within the workspace or an initiative created outside

When linking an epic or a feature to a initiative the search box appears retrives results for every product in the hieracy. This is a very important capability in Aha!, however the list can be hundreds of initiatives, and searching that list each time can be a pain.

I have a couple of ideas on how this could be improved.

1. enable the user to choose ALL initiative or their products

2. Show the workspace initiatives at the top of the results

3. Show most recent at the top of the results.