List View: Enable multiple block selection using CMD + Click

[mrfoxtalbot]

What problem does this address?

It is currently possible to select multiple blocks in the list view by pressing "Shift + UP" and "Shift + DOWN":

The problem is that if you are trying to select a lot of blocks, it can take a while to select all of them.

What is your proposed solution?

I would like to select multiple adjacent blocks by using holding down CMD and clicking, which I tried but did not seem to work with Gutenberg v12.0.2

This multiple selecting by CMD+click style does work when used to select blocks in the editor itself, just not in the List View:

[mtias]

List View also should support drag and drop for multi-selections. cc @priethor for tracking with list view improvements.

[richtabor]

I came here to make an issue on just this.

A common use case is to select multiple blocks and wrap them in a core/group block.

[andrewserong]

Just assigning myself to this one — I've made a start in a draft PR (#38314) that I'll continue on with next week. To begin with, I'm focusing on just adding in the Shift key behaviour for multi-selection. Longer-term it might be nice to look into adding CMD-click for selecting non-adjacent blocks at the same time, but I think that'll likely be a bit more complex to implement since our existing multiSelect action assumes a contiguous set of blocks within the selection.

[andrewserong]

The PR to add multi-select to the list view via the SHIFT key is ready for review / feedback now, if folks would like to give it a test! (#38314)

[mtias]

Nice work @andrewserong and thanks for the suggestion @mrfoxtalbot !