TOC and sticky ad feature

Hi there,

Unfortunately there isn't anything built-in for this.

A plugin like this would be the easiest method I can think of:
https://en-ca.wordpress.org/plugins/easy-table-of-contents/

Hope this helps :)

OK, thanks. And how about the sticky element / advertisement?

Hi there,

the sticky element can be achieved with some CSS.

1. Select the Block you want to make Sticky - make sure its a parent block like a GenerateBlocks Container Block or Group Block.
1.1 In the Advanced > Additional CSS Class(es) add: sticky-block

2. Add this CSS to your site:

.sticky-block {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
}