• What's wrong?

Rank widget does not show that Manual selection is active, if:

1. Best ranked was active.
2. I clicked into the white part of the table to deselect.

The "Select Attributes" radio button still has "Best ranked" active, but nothing is selected (and the status bar shows that nothing gets to the output). Instead, the "Select Attributes" radio button should switch to "

Summary

AnadinX described the issue pretty well on our Discord channel:

Just chiming in here, as a UE4 user dragging and dropping in an empty space to make new node is very intuitive and I often miss it in other node based systems. Obviously this works when the drop invokes a way to type new content/search for a node. Cancelling is either done with a right click or ESC. I don't really kn

Is your feature request related to a problem? Please describe.
It would be good to have an example of how to use multiple editors in an application.

Describe the solution you'd like
Use a tab control with a 'plus' button like in Chrome to create a new tab. The new tab will contain an empty editor instance.

Optional
Add a way to close the tabs. Suggestions:

• a 'close' button