
Guide:

Firstly mod give you a "Physic gun", its claw, to use it do easy attack(mouse1). Well, done.

Press F2 - to open "Context Menu". Where you found Walls, Other, Floor, Objects, Weapons, NPC, Car, Tools, Undo Prop

Walls: In standart mod 16 walls, where 3 walls - is glass(barricade)

Other: In standart mod 8 floor walls.

Floor: In standart mod 23 floors.

Objects: In standart mod 3 bushes and 2 trees.

Weapons: This menu, that can spawn 63 weapons/items.

NPC: This menu spawn 5 game npc:Zombie, Headcrab, Snark, Vortigaunt, Soldier.

Car: This menu spawn 20 "simple code" cars.

Tools: This menu change mode of "Tool gun" (five-seven). This have Size tool and Remover Tool(Remove props(all, that created by Context Menu), floor items, entity remover(npc,buildings))
Warning: Size tool works normaly, if you click in prop and it don't change size, use gravity gun to replace it.

Undo Prop may cause problems, it remove latest prop.

Tips:

If player spawn, his money "grow" in 50$ per ms100.

You can found "secret menu"(see on screen), where you can found Wall Defender and Invisible(Not fully, for fun)

F-Keys:
Mod have 2 types F-Keys: If you drag prop and if not(1 and 2).

1 Type: F2 - Rotate prop, F3 - Remove prop, F4 - Dublicate prop.

2 Type: F2 - Opens menu, F3 - Noclip at cursor, F4 - move image, like deathruns.
Thats All!