How can I type in Chinese?
Every font is limited by the characters/unicodes it chooses to support, so therefore not every font can support multiple languages.
For this reason, we've added a specific font to support Chinese characters.
To find Noto Sans Chinese, you can click on the left panel to change the font (after you've selected a text box) and then you can click on the more menu at the top of the screen to reveal a dropdown. Scroll to the bottom and select international.
You should now see the Noto Sans Font.