missing "Command before hosts is applied"

[BartmanEH]

Currently there is functionality to run commands AFTER SwitchHosts makes changes to the hosts file, however, what's missing is the ability to run commands BEFORE SwitchHosts makes changes to the hosts file.

I keep the hosts file locked to prevent unauthorized changes to the hosts file. I set the noschg and nouchg flags on the hosts file and these need to be cleared before the hosts file can be changed.

So I'd like to run a couple of terminal commands before SwitchHosts attempts to make it's changes which currently results in a "Fail!" message.