How to add Flowhook permissions to custom userrole ?

[#1]

I would like to assign flowhook permissions to the userrole so that users with that userrole can edit the flowhooks.

I did try adding the following permissions:

   {
    "organization" : "<org-name>",
    "path" : "/flowhooks",
    "permissions" : [ "delete", "put", "get" ]
  }, {
    "organization" : "<org-name>",
    "path" : "/flowhooks/*",
    "permissions" : [ "delete", "put", "get" ]
  }, {
    "organization" : "<org-name>",
    "path" : "/environments/*/flowhooks/*",
    "permissions" : [ "delete", "put", "get" ]
  }

But still I don't see the permissions to Edit or Add the Flowhooks in the UI for the user in that specific userrole.

Can someone assist on this ?