Yes, you can add a sitemap to your domain within your Google Search Console account. We usually set up this verification for you, but if you'd like to be an owner on the account, follow the below instructions. And once you do, you can add a sitemap within the Search Console.
** Before you begin: Make sure your website is published. You can double check in the website settings section of your sitebuilder.
Login to your Tertulia author website.
Go to ‘Settings’ in the Navigation Bar and click ‘Integrations’.
Scroll down to Google Search Console and click ‘Open Google Search Console’ on the right-hand side.
This will open a new tab in your browser here: https://search.google.com/search-console.
3. Add Your Website as a Property
Create an account or login if you have one and click "Add a property".
In the pop-up, choose the "URL prefix" option on the right.
Enter your full website URL (including https://) and click Continue.
4. Open the HTML Tag Verification Method
On the next screen labeled "Verify ownership", expand the HTML tag
5. Copy the HTML Tag
You'll see a line of code that looks something like:
<meta name="google-site-verification" content="...">Copy the entire tag.
6. Add the Code to Your Author Website
Log in to your Tertulia Author Website editor.
Go to Settings > Integrations > Google & Meta Integrations in the right-hand menu.
Paste the HTML tag you copied from Google into the Google Search Console field.
Click Save Changes.
7. Return to Google Search Console
Go back to the Google Search Console tab.
Wait about 30 seconds.
Click Verify.