Collapse json from the bottom of a block

While inspecting a json response, I often want to go to the top of the containing block, either by collapsing the block or jumping to the top - you can collapse from the top in the left gutter, is there something similar from the bottom?

Pseudo json example:

{
some stuff
{
more stuff
{ point a
… 1000 lines …
} point b
}
}

If I am at point a, I can collapse at the curly braces in the left gutter. If I am examining the json just above point b, I would like to be able to get to point a the top of the block without scrolling up 1000 lines and trying to stay aligned in the correct column. Is there a trick that I am overlooking? Thx