Google+ Checkvist community posts 2013-2018

I'm baffled. I have a child item in a list and I want to outdent it. When I use SHIFT-TAB, the item is outdented...but also moved below the other children in the list. In apps like OmniOutliner, an outdent simply moves the item to the left. Is there a way to outdent without moving the item? For me, the current behavior makes Checkvist unusable as items are jumping all over the place when I want to change the hierarchy. Thanks!

I'd like to use Checkvist but to start off I have to import a large outline from a Google Doc.  I can't find a way to do this and maintain the hierarchy, etc.  I've tried text export from Google (loses hierarchy) and even imported into OmniOutliner and then exported in OPML, and that didn't work either. Ideas?  Thanks - matt