It would be a handy feature to allow user to define patterns for default object names, eg. primary keys. Currently, PK is formed using pattern "{objectName}_pk". Such pattern could be defined by user, having access to variables like {objectName}, {objectNameSingular} (for objects named in plural form). For FK, source and destination object names could be accessible, so user can form default FK name as "FK_{sourceObjectName}_{destinationObjectName}". I'm aware, that this can be done via explicitly naming PKs and FKs, but such feature would be useful when model is big and many relations exist.

It would be nice to be able to do some automatic diagram layout. For the whole diagram or for selected area.

I'd like to request some minimal auto formatting such as snapping to align tables and/or some other means of automatically arranging the canvas.

Vertabelo would be a must-have for Rails projects if Vertabelo generated Rails migrations.

Some time ago I have reduced the heights of the largest tables in my database model to minimize its size. That way, I have scaled several tables. Many columns in these tables where hidden. Unfortunately, there are no icons within the down-scaled tables indicating that these tables have more columns than are displayed. In my opinion, this is a fundamental feature to know which tables have additional, hidden content. In all other applications, there are relevant icons (usually in the right bottom corner) indicating that the object has more content inside it. It's very important to have such information available, especially when you're working an a huge database model for a long time and it's very likely that you forget which tables were vertically scaled.

A function to organize the db layout

My model is huge and it consists of over 100 tables and twice as more references. The jungle of lines was very confusing for me. Therefore, I deleted all references and used table colors, sizes and positions, as well as subject areas to visualize the structure of my database.
It would be great for me if Vertabelo had an option allowing user to hide all references without deleting them.
The other idea is to allow user to hide all references and show only these ones which are associated with the currently selected table. If no table is selected, all references are hidden but when the cursor is over the table, all references associated with that table are being displayed in gray. If user selects the table, all these references (associated with the table) are shown in normal color (black).