I really like what you and TLB did with the BMPToArray program. Makes adding modules so simple.

Maybe i should have been more clear. This brain unit does not spawn anything with that drone sprite. It does not move. And it creates stairs against my will. Pressing buttons has no effect on this.

Edit: By brain unit i mean the one called "constructor". I'm for the most part not that stupid.

Which control scheme are you using? It could be a compatibility issue.

I was using keyboard + mouse but after your post i tried keyboard and it still didn't work.

There is no brain unit. The constructor is an Actor class MO with no collision of any kind. You have to order the Background modules (labeled Empty 4x4, Empty 8x8, and Empty 16x16), which are also in the Constructor bunker editor group.

You must purchase the constructor while within the bunker editor menu.
It is literally impossible for construction to happen without active participation from a user; some kind of input device is acting on the constructor. Not only is it required to have a user pressing their game-defined fire key to begin construction, it's necessary to CONTINUE construction. Also, stairs are not the default module, meaning that some kind of switching action is being initiated, otherwise you would be building BlockA repeatedly.

Under the Brains menu.
Try again.

I don't know what version of it you have, but that's not the current one as far as I know. It hasn't been under the Brains menu for quite a few revisions, long before it was released.
EDIT:
Augh! Somehow, a ridiculously old version of the constructor got uploaded. Please redownload it.

That's what I assumed happened.

GODDAMNIT TLB STOP MAKING PEOPLE BLAME ME FOR YOUR MISTAKES

He's an admin, delegating blame is part of management's job description.

It is a very bad Idea to mess with Grif, even you know this TLB, he is Death with a mace.

YAY. The new proper working version is incredible. This mod is clearly the 8th wonder of the world.

Edit: I never blamed anyone. I just wanted to use the mod.

By the way everyone, the reason that this can't be used anywhere on the map is because Grif told Data back when Cortex Command was still called DIRT that it should be that way.

What?
That makes no sense what so ever, you can only use this on the designated constructor BG ( due to lua sparkles ) , and you are just trying to destroy paula.

He even said it has those restriction because to balance this, and so that the ♥♥♥♥ isscrap bug doesn't screw with the strength of the placed bunker modules.

That was a joke. I know full well why it works the way it does, I'm the one who figured out how to fix it.