Where can I find settings to change the Create a new Topic defaults?

[Don]

Whit this theme component you can change the default category in composer.

Default Composer Category component

Repository at GitHub - discourse/discourse-default-composer-category https://github.com/pmusaraj/discourse-default-composer-category Install this theme component What this does? This is a very simple theme component that does only one thing: it lets administrators set a category as the default category for the composer. It’s most useful for sites that have disabled the Uncategorized category and would like another category to be automatically selected when launching the composer. How to co…