Limit Which Parent Items Appear in Pop-Ups

When linking to parent entities (e.g. linking a feature to a master feature or initiative), there is a pop-up or drop-down with a list of available options to select. This currently includes ALL of the items regardless of their status or which workspace in which they exist. It makes for a very long list and one that is difficult to manage and peruse. It would be great to have configurable settings to constrain what shows up in these lists so that it de-clutters them. While I've tagged this to "Features," it also occurs in Master Features, Ideas, and other items.