Performance EL Expression

Content

Hello,

I want to add an EL expression under the show component option of the add goal button in the performance document page. I want that this button will be visible for all performance documents except for this one "CONTINUOUS FEEDBACK V4". So I thought to put the below EL:

#{bindings.CustomaryName.inputValue != 'CONTINUOUS FEEDBACK V4'}

But it doesn't work. Do you have ever test a customization like this one?

Thanks

Valeria