Yep, we really need more information to make better title !

Else : need error information too (see skelvanilla solution)

Including error notification information in the page title (future link)

https://www.w3.org/WAI/WCAG22/Techniques/general/G83.html

in my situation, {{ pagetitle }} is empty string inside (upload/themes/survey/mytheme/views/subviews/header/head.twig)

I also wrote this following code, but aGroup is not available variable inside that Twig template

{% if(aGroup.name) %}{{ processString(aGroup.name,1)}} - {% endif %}

I use pagetitle only if it's not empty

I also wrote this following code, but aGroup is not available variable inside that Twig template

Yes, it's the point : I think we need , in surveying or elswhere ; sometthing like aSurveyInfo.currentStep

Current group information

• (whole if All in one page
• empty for register, token etc …
• For save : maybe add current group, unsure

Current questions information

• Whole from group if survey is group by group
• current for question by question

Current step (with translation) : You can have it via {{ aSurveyInfo.include_content }} https://github.com/LimeSurvey/LimeSurvey/blob/0175cefbb6f797fa6e17cb559c152ecf06e59276/themes/survey/vanilla/views/layout_global.twig#L114

While answering questions, include_content is undefined.
Your answer was good for other actions happening in the survey (welcome, save, submit etc...) but I still have no option to change the title while answering.
For example, "Page 1 of 6" would be enough good, if we had groups count and group progress. But the best, would be as I said before.
Maybe also progress value can be an indicator for example "My title for this survey, progress 24% - My Site Name". But is unavailable.

I share the ugly code I wrote until now:

[code]
<title>
{% if aSurveyInfo.registration_view is defined and 1 == 2 %}
{% if 'register_form' == aSurveyInfo.registration_view %}Iscrizione: {% endif %}
{% if 'update_form' == aSurveyInfo.registration_view %}Aggiornamento dati: {% endif %}
{% endif %}
{% if aSurveyInfo.include_content is defined %}
{% if('firstpage' == aSurveyInfo.include_content) %}
{% if 2 == aSurveyInfo.showsurveypolicynotice %}Informativa: {% endif %}
{% endif %}
{% if('submit' == aSurveyInfo.include_content) %}{{ gT('Thank you') }}: {% endif %}
{% if('register' == aSurveyInfo.include_content) %}{{ gT('Registration') }}: {% endif %}
{% if('save' == aSurveyInfo.include_content) %}{{ gT('Save and close') }}: {% endif %}
{% endif %}
{% if aSurveyInfo.surveyls_title is defined %}
{{ processString(aSurveyInfo.surveyls_title,1) }} -
{% endif %}
Questionari e Sondaggi, My Organization Name
</title>
[/code]

Is there any workaround for Titles in "Scenario 2", the adminstrative backend? Considering a custom "admintheme", do I have option to overwrite templates without altering core?