Is your feature request related to a problem? Please describe.
I think outline mode makes it easier to write ideas and concepts in structure.
Outline mode is bullet and toggle combined gives it a advantage over normal bullet list.
Describe the solution you’d like
Using slash command we get outline block which will be like roam research or logseq, having the ability to use toggle in a bulleted list.
Describe alternatives you’ve considered
No alternate is considered.
Object “parentage” already exists, I believe. This is why you can drag-move an entire set of blocks at once, if they are intended inside a parent. There is no other derived functionality from this, such as block reference/transclusion with child blocks, but it should be possible.
What you’re referring to here is, I think, mostly just a visual thing (not to dismiss its value though). There are already bullet type objects, so adding collapse is the only thing needed. However I am much more in favor of having “toggle” be a function of any block. It enables this use case as well as many others, and is something no other block-based editor has:
@Oshyan if toggle can be used as you say then even Heading can be toggled and many more. It nice too.