When you create a block you get a full list of all the input fields that has been created for this block. BUT they are not divided up into tabs as it will be if you go and edit the block later on. 
Would it be possible to extend this view so that it simply renders out the names of the tabs - as a heading. This would help the editors in creating the block using the "quick create mode". 

If you have a good name for this mode - please let me know. :)

And yes we understand that the height of the view would become higher than normal - but at least our editors think it is worth it.