You can have different layout for each language and can therefore include your local language labels in the layouts.

When I look at the custom layouts available for me, I can see them in the languages English, German and All, but not it Dutch, which is the 3rd language installed on my site. It seems that the other languages were creates automatically, but not this one. Perhaps because this language was added after jEvents was already installed? Anyway, how do I create it now?

It should repopulate the list of languages/layouts each time you open the custom layouts page in the backend.

Did you try reloading the page a couple of times?

yes. I also changed a filter on top. No help...

what languages do you see in the drop down filter?

Do you have any dutch content on the site? The language settings it uses are based on the content language being set up as opposed to the interface translation language.

In other words when creating a Joomla article do you get offered Dutch as one of the languages it can be in?

yes, the dutch is set up properly. It shows up everywhere, even in the drop down menu in your filter. But when I select it, I get an empty selection. When I select nothing, I get all other languages (including German, which is currently unpublished), but not the Dutch.

See screenshot attached.

Please can you upgrade to JEvents 3.4.5 and if they don't then appear please send me login details & URL via PM and I'll take a look for you