[Feature Request] Be able to execute one command that executes on all grunts

**Feature Request or Bug**
Feature Request

**Describe the feature request or bug**
This feature would allow for the user to enter a single command that will run
across every grunt you own.

**Expected behavior**
The command is run on every grunt machine.

**Additional context**
When a person has more than 10 grunts it can be very tedious to
go through each one individually to run a command. This feature would
speed up the process and is a huge quality of life feature.