Unable to write, type anything in source code of a function module.

Hi all,
We have a registered name space for our client called /ABCD/EFG.
I need to create a function module in the name space.
So first I created a Function Group called /ABCD/EFG_FG in /ABCD/EFG. I activated it in se80.
Then I created a Function Module called /ABCD/EFG_FM in /ABCD/EFG. I declared the import and export paramters and now I am trying to add the code in source code and the editor does not let me change the source code donu2019t know why.. and every thing is in grey color.
Can some one tell me what is going wrong? Cant we write any logic in the function module that we create in registered name spaces? When I created the same function module as a local object in $TMP package I dint have any problem. Similarly I created the function module in a Z package and I dint have any problem but if I try to create the same function module in a registered name space it is getting created but it doesnu2019t not let me type anything in the source code of the function module.
Did any body encounter this problem earlier? Kindly please help.
Regards,
Jessica Sam

Rich,
Thanks a lot, that worked. Now it lets me type and change the source code of the editor.
But while i was turing off the assistant it showed me 2-3 messages saying that "i cannot track the changes" and that "during upgrade i cant track the changes " etc.
So now i can type in source code and i am able to change in source code..but will the trurning of this assistant cause any problmes in future or during upgrade?
Regards,
Jessica Sam

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Unable to write, type anything in source code of a function module.

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