Done,
here a short video on what could happend....
https://vimeo.com/397627826
For anyone can use it, you can download Elementsym_tofile.py on my Github account.
https://github.com/vohe/qelectrotech_labels_to_file
How does this work?
For each folder of the user - collection it is possible to set a language description.
So - you add a 'virtual' language description for language 'sy' which contains the symbols label.
This little tool fetch all the labels you set (and possible you can set the labels right in the tool)
After you click on the >>save<< button in the tool, it generates the qet_labels.xml file for you and after a
restart of qelectrotech you could use the symbols with labels.
Feel free to send me your suggestion about this
regards