You can add your custom open and close button names.
Custom End Text will only work with the Word Count.
The content uses Rich Text editor, but it also allows it to be replaced with Dynamic Data, which can be used for query loops or repeaters.
The content can be hidden by Word Count or Height, when using those inside the builder the open button might not work inside the builder, you can double click the same button example Word Count, and it should work afterwards.
Max Word Count may not show the correct amount of characters inside the builder but will work every time on the front end for the users, and will show the correct amount after the builder reloads.
You can additionally add the button above the content.
You can add your own button styles, and apply any style to any Rich Text elements such as paragraphs, lists, headings etc.