I,v in pairs to get cframe torso to baseplate help?

I'm going to explain something about i,v.

a "iv" for loop, loops though all things given in in pairs(-here-)

i,v can be any value. Mostly we don't use the i value, so we put in for _,v in but that doesn't make a difference either. (Just for decorations)

If we say for i,v in pairs(game.Workspace:GetChildren()) do it would loop through each child of the workspace.

i is the number of loops that have passed. v is the instance that is currently picked out of the pairs(-here-)

For players, this would be pairs(game.Players:GetPlayers())

Now for the script.

As this isn't a request site im going to leave a few blanks for you to fill in.

I'd suppose all these "SP-#" parts are in all in a model.

local players = game.Players
local spawnParts = --fill

game.Workspace.Value.Changed:Connect(function() -- you said fire on workspace value changed.
    if game.Workspace.Value.Value == true then
        for i,v in pairs(--[[fill]]) do -- Loop through all players
            if v.Character then
                if v.Character:FindFirstChild("Torso") then
                    v.Character.Torso.CFrame = spawnParts["SP-"..math.random(1,10)] -- Set the torso's cframe to spParts.SP-(1 to 10)
                end
            end
        end
    end
end)

Any questions? Put down a comment :)