When you click on a feature/event, you get a pop-up which has a two-letter feature/event code followed by an identifier as appropriate (see screenshots below). The two letter feature/event code is not particularly informative. It would be much more informative to replace the two letter code in the pop-up with the feature/event it represents. For example, AR = Active Region, EF = Emerging Flux.
When you click on a feature/event, you get a pop-up which has a two-letter feature/event code followed by an identifier as appropriate (see screenshots below). The two letter feature/event code is not particularly informative. It would be much more informative to replace the two letter code in the pop-up with the feature/event it represents. For example, AR = Active Region, EF = Emerging Flux.