Many times I encountered problem when I made several pages with status bar. In status bar there is battery level and clock. The problem is that every time I change page I have to refresh component value. I suggest that you make another attribute which will change global components value with one command on all pages. So if I send clock.txt="12:35" it will change on all pages and when I switch between pages the value will be refreshed.
I've encountered the same problem I have a status bar with volume, brightness, battery and language status.
and I have about twenty pages so it a little bit difficult to initiate every page.
I am now reviewing all of the Feature Requests, this will take some time, patience please.
Global values of .txt attributes and .val attributes are captured by the .vscope Global
This does not make the component from another page available.
The HMI design allows for up to 3584 bytes (8192 in Enhanced models) per page
This is because when pages are changed they are essentially dumped from memory
There are many advanced considerations and techniques needed to realize Globals.