Need help to replace a UFT script in ALM

Hi,

I have UFT scripts stored locally in my computer. In ALM 11.52 I have manual test cases but when I convert them to QuickTest, I can't associate them to existing scripts from UFT because I receive an error message "You cannot replace asset stored in ALM". I think it's because when a manual test case is converted to QuickTest, ALM generates automatically a script.

So, what I need is replace the script generated automatically by an existing script that I have stored in my computer. Is this possible?

Thanks in advance,