Keyboard language switch should iterate over a small list

The keyboard language switch button is iterating over all the available alphabets (10-20!?). There should be an option to select a subset of 2-3 languages that you want to use. If you're using a couple of keyboards, for example English and Bulgarian Cyrillic, why would you need to iterate over 20 other alphabets like hebrew and arabic to get to the other alphabet you need? Also, there is no indication which is the English alphabet as there are quite a few alphabets using latin letters. There should be a language indicator even if shown temporarily during the switch.