While keeping my homepage static (but creating other pages, of course), how can I assign specific posts to specific pages? I’m moving older items from the homepage to new archive pages; and I don’t want the archived items to be posted on the page with the new reverse-chronological posts. I can categorize the posts, of course, but I want them to go on pages reserved for each of the categories.
And, while I remember, I (finally) know how to do block columns for individual entries on posts and pages, but how can I set a whole post or page to retain the column formatting?
Normally, the best way to do this is to assign your posts to categories, then create a new blog archive page that only displays the posts assigned to a particular category. You can even create a link in your site’s menu to a specific category, so your visitors can find all the posts within a certain category.
That’s the best way to have all your related posts appear on one page.
If you want to change the order in which those posts appear, and dislike the default order (reverse chronological, with the newest post on top), you can try a plugin like Chronological Posts, which reverses the default sorting order to be chronological (in the order you published your posts, with the oldest one on top).
I’m not sure what your particular use case, but hopefully this provides a workaround.
To your final question about how to retain column formatting, I’m afraid I’m not clear on what you’re trying to do. You said you know how to create columns for individual posts and pages. That’s the extent of what you’re able to do with columns.
You can save set of blocks as a reusable block, which makes it easier to simply add a group of blocks to a new page or post that retains the specific blocks and formatting that you’ve created for an earlier post or page. Reusable blocks are covered in this tutorial video.
I hope this helps point you in the right direction.