There's a small nuance. The option is now available in the Designer context menu and in the IDE Options dialog. What are the interaction variants?
1. Only the setting in the options dialog is remembered. This is the default state for each new Designer. You can change its state separately via the context menu, and it won't be remembered. This is quite flexible.
2. Changes in the context menu are also remembered. This is much more obvious and familiar to the user, and theoretically, the checkbox in the options might not even be necessary. On the other hand, there can be multiple Designers - switching the state in one won't change the others. This means there can be multiple states, but only the most recent switch is remembered.
3. As in the second case, but switching in any Designer will change all the others. This consistent but it's lacks flexibility.
Personally I don't have a preference. So far, only the first option is technically implemented.