When developing websites and applications, you often have a nested structure displayed somewhere to you. In bubble this is the element tree. Here are some ideas for upgrades:
Have the tree expand and open to show the current element that is selected
Allow drag and drop of visual elements into element tree. This would allow predictable placement of new items on the page.
Stop auto-hiding elements…
When elements are hidden I find that they disappear often while working on them if the selection changes ( see my other recent post in this cat. about how to tune that up ). Allow a user to ‘lock the item’ as visible so that you can work on it reliably. This might even be accomplished through views - different configurations you want to see the page in while working.