I don't know if I correctly understood your problem, but I often use this instead of Select :

It's a Text String and 2 buttons. Change the text of the Text String when you press the buttons. Then you can have many values and it will always use the same amount of memory (less memory than Pages or Select + Labels)

Спасибо за идею! Для русскоязычных пользователей поясню от себя: двумя кнопками выбирается индекс (увеличивается или уменьшается на 1), по индексу в текстовом поле выводится название (в моем случае локомотива).

It's a Text String and 2 buttons. Change the text of the Text String when you press the buttons. Then you can have many values and it will always use the same amount of memory (less memory than Pages or Select + Labels)

but this BEEES out the extra memory, which can be just a butt.

 
Ahh... Google Translate... so funny

Every single element will have it's own variable... thus no need for the program to know the page the element is on. Your code should be able to perfom the needed action based on the tasked elements variable.  Even the lowly UNO should be able to handle a couple of pages of elements, let alone an ESP-01, ESP8266, ESP32 and so on.