Remove " + Add" button visibility for all Talent Ratings if a rating is already saved. The only opti

Summary

Remove " + Add" button visibility for all Talent Ratings if a rating is already saved. The only option should be to edit the rating, not add a new rating

Content

Remove " + Add" button visibility for all Talent Ratings if a rating is already saved. The only option should be to edit the rating, not add a new rating. 

We have added:

• #{bindings.Field.inputValue == “”}. As this is the right code to remove the Add Button. However it is really tricky to figure out the condition on setting the “Add Button” as default if there is no input field.

We are trying to find the right EL Expression to set this condition correctly for our requirement.