Hi GM
1) I would also need the Bümpliz location category for some profiles. But as we didn't resolved the question about how (and from when) the location name should be chosen, I didn't create it yet.
2) I found this page, the proposed Canton categories by the categorization project:
https://www.wikitree.com/wiki/Space:Swiss_cantons
I think, this page will solve a part of our questions, because it links the categories of the cantons in their main speaking language. Eg. Canton of Tessin only has English and Italian (Italian beeing their only language spoken), while Canton of Berne has English, French and German (with French and German being spoken). So the category for Canton of Berne should not be created in Italian.
3) For timelines, add those lines inside a CategoryInfoBox:
|succ1text= Timeline
|succ1next=
|startdate =
|enddate=
See example:
https://www.wikitree.com/wiki/Category:Castelmonardo%2C_Vibo_Valentia
But we would need to decide first in the Switzerland project, if timelines in location categories should be used or not.
As mentioned, I don't really see a big advantage in them, because of 4).
4) The aka-template mirrors the other respective categories, so if I add the location category of "Canton of Berne" (English), the profile will also be shown in the respective categories of German and French.
This is not the case with timelines. Timelines a) produce a database suggestion in WikiTree, if an unfitting profiles is placed in this category (eg. if you add a profile from 20th century to a category with "enddate=1700"), and b) if there is a category in "succ1next=" (there's also a "before", but I would need to look it up), it will create a link to this category inside the CategoryInfoBox. So each category with a timline remains a single category, the profiles in each of those categories are not shown in another one.