Can the 'clear all older entries' please have a confirmation window? I click it by accident when wanting to go for the 'clear filters'.

I'd like to implement this today. I think the "clear older entries" feature may not be necessary at all. How about a setting for how many records to retain? Then I can make the button actually clear the filters (which you can't do in one click right now).

Edit: I totally forgot the "Clear Filters" button already exists. I think I'll simply remove the "Clear Older Entries" button and add the retention depth setting.

Putting the 'keep X amount' of history into the settings sounds nice. I'm 600+ hours into SEK2 game and I really like looking at the history on occasion and see how much of an impact some of the changes I make cause

Working on it now! I'm 350 hours in and have 600 launches in the record. It's very useful to detect issues, like when my Iridium planet stopped producing for 48 hours, or when I launched a full load of sand into moon orbit because the destination wasn't set.

Now, should the history depth be per-force? I'm realizing maybe it should be.

Added in the latest version!

Note that sometimes if you change the retention limit in one save, that value can be ported over to another save if you don't reset at the main menu before loading. I think that's only a problem when migrating old saves that don't have the setting saved yet.