Remove "New" icon in CRM Web Client Search Results

Hi

In CRM Web Client UI, I have setup various searches (see below image for example).

In the Results List, you will see a "New" icon...which will allow users to create a new transaction type.

I want to hide or deactive this button.  I only want ZMHF and ZMMJ to be created from a ZMCR and not directly (hence the reason for hiding this).

How do I hide this?

Thanks!!!!!!!!!!!!!!

Shaun