Hi Ula,
Thank you for reaching out to us.
The Grimlock Divider is a block that allows you to use a shape between two other blocks. Please find the attached screenshot.
Concerning the block with “Find people Matching you”, this is a Grimlock Navigation Menu Section block. This block allows you to display a menu. In this case, it display a menu with images.
To delete a block, you have to click on it. Then, a tool bar with quick option will appear on the top left of the block. I suggest you to click on the three dots to open a sub meu where you will be able to delete the block.
To edit a Grimlock block, all the settings you need are displayed on the right sidebar when selecting a block. These settings will be different related to the block you’ve selected.
Note that our theme uses Gutenberg editor. This is the default WordPress editor. To know more about how to use Gutenberg, I think this article from WP Beginner might help you: How to Use the WordPress Block Editor.
Don’t hesitate to come back to us if you have other questions. 🙂
Best,