Why the limited functionality of Structure Cloud?
Why the limited functionality? No Gadget for Dashboard? No column sort? No bulk change?
The Cloud platform is very different from the Server one due to functional limitations of the Cloud-based architecture and Jira Cloud APIs, so we cannot replicate Structure Server as is. Most of the system had to be developed from scratch, and some features just cannot be implemented in Cloud.
Structure Cloud is under heavy development now, more and more features have been arriving to Cloud. There is the roadmap: http://alm.works/cloud-roadmap. “Sorting by columns” is already planned (lies under “Transformations”), Gadget and Bulk Edit are under consideration now.