Hey there and welcome to the Community, @Christian_Knoll 
Thank you so much for the feedback!
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Additional criteria: I see that you’ve already used the Tag option to add indoor/outdoor criteria. Does this option work fine for you?
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Weather: Would you like to display the exact temperature or show it as “rainy”, “sunny”, etc? Would you like to manually input the weather info or it should be automatically pulled from a specific source?
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Mass import: You can use the Google Calendar integration to dynamically pull the events form your Google Calendar. Here is an article explaining how it works - Importing events from Google Calendar to Event Calendar - Elfsight Help Center. We also have request for the import from other sources, feel free to upvote these ideas
