How to hide + Icon of sub grid using Ribbon Workbench in Dynamics CRM

Pre-requisites

                     Import Ribbon Workbench in your CRM instance.

a)       Go to the below link to download it.

https://ribbonworkbench.uservoice.com/knowledgebase/articles/80806-download-ribbon-workbench-for-crm-2011-2013-2015.

Steps to hide "+" icon of Contact sub grid from Account entity only.

             

Step 1) Create “Enable Rule” and add “Entity Rule” as step in Contact entity.

Step 2: Find Command names of “Add New{0}” and “Add Existing{0}” buttons.

    Note:

For hiding the + icon from contact subgird, we need to add enable rule for “Add New” and “Add Existing” buttons.

Step 3) Add Enable rule (new.contact.DisableAddIcon.EnableRule) for Command of “Add New” and “Add Existing” button.

Step 4: Publish the solution.

Output: 

“+” icon is hidden from Contact sub grid for Account record. Though if you open it in any other associated entity, it will be visible there.

Comment if you require more info.......