Global search - command bar

Hi guys,

is it possible to customize command bar in global search result page? There are 3 buttons (new activity, new record, import data) and I need to add new one.

I'm using Ribbon Workbench to customize other entities but can figure out how to do something here.

I tried add button on global command bar and add hide rule like ...Get entitytypecode and if not multientitysearch (9910) -> hide. but I can't add that script to that page - or I don't know how to do it.

Is there supported way?

CRM is 2016 onpremise.

Thanks in advice.