Tia Portal V15.1
TP1200 comfort

There's a lot of topic on this subject, but something annoys me

* I want my logo company moving, to prevent "burning" screen
* I want less brightness, to save the livecycle of the LEDs
* I want to detect inactivity and/or activity to perform a custom ScreenSaver
I think this request is legitimate

What I'have done is :
Script 1 to increase an internal tag"cptInactive" at every call,
if this tag >300, then
- save the previous screen in a tag
- active the screen "ScreenSaver"
- Set brightness to 30%

On this ScreenSaver, a big invisible button that call script 3
- active previous screen
- Set brightness to 100%
- set tag "cptInactive" to 0

Another script 2 to randomise the position X and Y of the logo company
If interested :
<<<
Dim max,min

I use different scheduled task
- ScreenChange
- OpenBox (when dialog is open)
- CloseBox
- User change
to set the tag "cptInactive" to 0, to prevent my "cptInactive" going >300

All work well except one thing, how can I call my script 1 and script 3 every 1 seconds ?
Scheduled task can be 1 minute but not 1 second
I can use an 'event on value change' from a tag set to cyclic continuous 1s, that's fine, I have a "word of life" in an udt
I have almost all my HMItags in format udt, because it's convenient, but we can't set an event value on an udt tag
https://support.industry.siemens.com/tf//WW/en/posts/value-change-event-for-udt/207136?page=0&pageSize=10
Ok, so I made a new single tag, and all work well now
I adapt my actual project to this and now I realize that my logo can't go to the permanent area...>I'm stupid
So all that is useless

Here my question :
* why we can't set an event value on an udt_tag ? seriously I don't understand why
* Is there another way to detect inactivity and/or activity ? (because scheduled task only count screenChange and open/close dialog and userChange, but not when pushButton or I/Ofield...)
I would have loved in VB something like "HmiRuntime.touch"
* If I keep the permanent area, which is really permanent and cancel any attempt to perform a custom ScreenSaver, is there a way to adapt the legal ScreenSaver to my logo company ?

If someone from Siemens read this, why is it so complicated ?

Thanks for this examples
there are some greats

Concerning the screensaver, the example don't answer my questions.
Or in a way, that responds :

- it's not possible to detect activity "properly"
- permanent area is always permanent
- no one know why we can't use 'event on change value" on an udt or element of udt