This method involves precise timing between transferring money to another account and reloading your save slot. It is considered "difficult to get consistently" but remains a popular non-script alternative.
Better yet, use instead of dupe scripts. Macros automate clicking or movement without injecting code into Roblox. They are less likely to trigger anti-cheat, though still against Roblox ToS. lumber tycoon 2 money dupe scriptdownloads new