Using conditionals in mycode

[Divvy]

I was hoping that someone tell me If I can use Template Conditionals in  a MyCode so only the admin can see the content.

For example, in a member post, an admin edit the post and write something like that above the member post text:

Code:

[admin]This user is annoying...[/admin]

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And that note will appear to all admins and only admins could see that note.
Can someone help me with that? Please?

I tried this:


But didnt worked... appears like that:


Any suggestions?