Oh, I just saw this is Lemmini and not NeoLemmix. 

I do not remember if the up arrow walker select works in Lemmini - it's been a long time since I played on that engine. 

In order to help you in the future with these kind of selections:

There is a hotkey that forces the game to select a walker. It should be the "up" arrow by default.

This can even be combined with the "right" or "left" arrow key in order to select a walker facing right or left.

The force walker select is also very helpful for selecting non-digger lemmings in a digger pit. 

Nevermind no it isn't it's a doom 2 mod like unfinished a little and it ain't offical

Hi all. I'll try and contact that person once more to see what's happening. If it's nothing, I can offer up the codebase to Lemmings Forums.

Here's my replay of Inside Outside (Danger 1) - in the end I didn't need a miner and used two bombers.

I managed to do it in the end and didn't even need a miner!

For example, it always seems to end up like this even though I did the blocker when it was just in front of where the builder was, at the absolutely last place I could put it before it fell off? I've done it twice by accident now but both times it's ended up wrong. 

Yea I've played a few of the holiday lemmings levels and i noticed that the steel in that was a bit weird in comparison to the steel in most of the other levels I've played?

I'm currently playing the Lemmings Plus 1 pack by @namida on retrolemmini and I'm really enjoying it so far, it's everything I really liked about playing lemmings as a kid and I really like the new levels. However there's one particular level that requires a blocker to turn around a builder while it's building a bridge, and I cannot figure out where to do it? The spot I think where you have to do it, the game will not let me select the walker when I'm trying to turn it into a blocker and it just selects the builder instead even when I use framestepping and move my cursor all around where the lemmings are. But more often it just won't turn the builder around even when it's standing in front, I know it's possible as I did it by accident the first time but something else went wrong with the lemmings and I had to start again?

I've once again confirmed today that steel does not behave as intended in *Lemmini*.

Simple Autosteel = Steel is always steel, wherever it exists, even if behind terrain. This works fine
Autosteel = Steel is only steel where it's visible. This does NOT work; we get Simple Autosteel behaviour instead
Manual = Steel is only steel where a steel area has been manually added. This works fine

Meanwhile, Classic Steel works but is essentially just badly-behaved steel areas that don't align properly with pieces and which can sometimes be destroyed given the right setup. This will be removed from RetroLemmini at some point, although the currently-in-the-works Level Editor (yep, you heard that right!) will continue to support it behind the scenes for backwards compatibility.