Hi there,
i took the liberty of adding a block to that draft page.
Its a single Query Loop block that i set the parameters to Include those 3 posts.
Points to Note:
The Grid Block inside is where i set the Horizontal and vertical gap. And i made sure the vertical alignment was set to default.
The Post Template block is where the Width is set to 33% to form a 3 column grid.
And i gave it some Spacing > Padding and set a Minimum height.
You can edit any single post in that query loop, and all other posts in the loop will reflect those changes.
Take a look – let me know.