Implementing lock in wordpress WITHOUT gutenberg?

Hi there, we have a customized established wordpress site and can’t use gutenberg plugin to insert objects. Is there any other way to use your wordpress plugin, insert lock?

Classic editor
Your plugin installed

Thank you.

You may be able to use this approach to convert a Gutenberg block to a short code. We’ve seen a number of projects use this approach when using other builders using shortcodes. Using the Unlock Protocol WordPress Plugin with Elementor and Other Page Builders - Unlock Guides