In version 10 we could create templates for any table we frequently used—such as customers, invoices, and generally for tables that required a lot of effort in their design. In version 11, this functionality is not available and likely isn’t planned.
One idea is, especially now that the multi-developer version exists, to have a library where we can store code we’ve written in PHP, C#, JavaScript, CSS, as well as tables we want to add with all their settings and events.
Since version 8.1 until now, besides learning PHP, JavaScript, and CSS, I used to write pieces of code that are now somewhere on an old computer.
And every time I want to use them, I try to recall them—which is difficult nowadays because, unfortunately, I've grown up. As a result, either I recreate them or end up reinventing the wheel. A library of code, or even entire tables, would be useful, if not invaluable.