I've got another change that I'm not sure how you would feel about including.
I added support for the "Lemmings for Windows 95" key bindings.
1-8 : set skills,
9 : toggle fast forward,
0 : toggle pause,
-/+ : release rate control
These work in addition to the existing F1-F12 bindings, so either can be used, but I did have to move some other existing key bindings...
"5" used to be "cheat the level", moved that to "C"
"-" used to be "back up one second", moved that to "["
Reasons for this...
1. "Lemmings for Windows 95" was the version that I had played the most in the past so I was already used to these bindings.
2. I'm playing on a laptop so the F1-F12 keys are a bit more awkward to use than the regular number keys.
https://github.com/AaronKelley/LemmixPlayer/compare/59d25da..d400819I'm planning to also tackle
this issue which I have confirmed to be a problem, maybe next weekend? I'll have to figure out how to extract, edit, and replace the level. After that I will package up a release on GitHub named "V29A" and leave it to you guys to decide if you want to take any of this and merge it in to the "official" version.