Thanks for writing in!
The new version of X theme has new feature including the old feature that had there.
The new feature called as V2 elements. as per your description, I believe you haven't activated you haven't activated the advance mode.
Please go to X-> Cornerstone then click on the setting icon in the left.
In The Preference tab, enable the advanced mode then save it.
Then all the option will visible to you.
Before that please check this first.
- Ensure everything is up to date according to our version compatibility list at https://theme.co/apex/forum/t/troubleshooting-version-compatibility/195. Please follow the best practices when updating your theme and plugins. See https://theme.co/apex/forum/t/setup-updating-your-themes-and-plugins/62 for more details.
- Clear all caches including browser cache then deactivate your caching plugins and other optimization plugins.
- If you're using a CDN, please clear the CDN's cache and disable optimization services.
- Test for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it's fixed, you'll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
Hope this helps!