Turn Heading into toggle should automatically nest the blocks under it

Currently, it only does so if you go through and indent the blocks under the Heading, but that’s a lot of additional friction for transforming content. I like to be able to collapse long text documents and open them as I need them, and it’s easier to do that on Notion, where turning a Heading into a toggle nests all the blocks below it (and stops when there’s a higher hierarchy level Heading), or on Fibery, where Headings automatically have toggles. I’d appreciate either of these mechanisms! Alternatively, if there was a gesture for selecting a section of blocks without individually clicking each one (like long pressing the last block in the target selection), that’d make things easier too.