How do I make a seal model I make move?

Hello there.

Issues:

The issue is that you named a variable "end", which would not work since "end" is a global keyword. Instead, use "endPosition".

Recommendations:

Use local before a variable since variables without "local" are less efficient.

Fixed Code:

local model = workspace.group 
local startPosition = model.A 
local endPosition = model.B
local position = model.object

while true do
	position.Position = endPosition.Position 
	wait(2) 
	position.Position = startPosition.Position 
	wait(2) 
end