Yes you can. However, there are a few things to note:
You would need to first send an email to us at email@example.com and provide us with your email and bubble app id. We would need to manually register the app with Canvas for you before you can use our Canvas chrome extension to add page templates and blocks from our library.
You will be able to add the new blocks and page templates to your app.The extension will prompt you to update your app styles and add the new styles to your app for you. This will not impact any existing pages or blocks in your app.
The page builder (for marketing pages) will not be available to Canvas apps created before 12/29/2020