I just discovered that if you have an "outline" in the form of tab-indented text in a text editor, and you copy and paste it into IQ, IQ will automatically create items and subitems corresponding to the number of tabs preceding each line. Beautiful! Great job, Pierre !!
Now for the "outline" in my Tabs Outliner Chrome extension. I can drag and drop a parent and its children to other apps, and the results vary between destination apps. If I drag to a text editor, each new level is represented by a four-space indentation. (If I drag and drop a TO parent into Word or IQ, no children are pasted at all.)
In my Notepad++ text editor, I can quickly replace each 4-space indentation with a Tab, and then I can cut paste the resulting text into IQ with the desired results.
It would be nice if IQ would handle each 4-space indentation just as it handles tab-indented text, but obviously no big deal.