We need to be able to reference other pieces of Content in a custom dropdown field (which would simply list the Title of the content, similar to a multi-select field). Ideally we could filter the what all content is listed based on Content Types (so only Content of 'X' or 'Y' Content Types shows in that custom field dropdown). The reason is because we need to reference multiple pieces of Content (their Title is sufficient) within a single piece of Content as a relationship, and the only way to do this now is to manually copy and paste the titles into a text field (i.e. in a coma separated list). That is very cumbersome, and leaves room for error.
Need to be able to reference other Content in a dropdown. - Rob - 3/14/16