Other Settings is located under My Calendar > My Calendar Pro > Other Settings.

My Calendar Pro Settings Other Settings
My Calendar Pro Settings > Other Settings

Enable language selector on events – Multilingual Events

My Calendar Pro ships with support for multilingual event listings. If you’re offering events in more than one language, you can mark the language for each event. This is primarily about screen reader accessibility; when an event is marked as being in an alternate language, the output HTML will be wrapped in a container with the lang attribute set to the chosen language, so screen readers will pronounce the change in language correctly.

This feature is automatically turned on if your site has more than one language installed.

Additional language packs may not be installed if you’re not supporting a fully-translated multilingual site or don’t have any site users using alternate languages for the admin. If so, you can install any WordPress language pack by going to WordPress > Settings > General and changing the Site Language to the desired language. Once the language is installed, you can switch back to your preferred language, but the additional language will remain available.

Once all desired languages are installed, you have the option to choose the site language for your events.

Enable private event description setting

Check box between 'Excerpt' and 'Categories' to set event details to private.

If you enable private content, then each event will offer a checkbox to keep the details for that event private. This will hide the event description from public users, but allow logged-in users to see those details.