I already have that option enabled. The issue is you have to click to preview. I want to see a single line snippet of all messages without needing to manually expand each one. Notice in my screenshot of Mailspring those messages are collapsed but you can still read the first line of text. This lets you quickly skim the entire thread for what you’re looking for without any additional clicks. When you have long message threads like I frequently do this makes a really big difference.
1 Like