Add the option to increase or decrease timeout length without starting a new timout
Presently, when timing out a user in chat, whether it be via a chat command, the value picked is the value set, with no way to increment or decrement it without setting the new value yourself. Instead, could moderators and streamers have the option to use + and - in the timeout commands to adjust timeout lengths?
For example, a moderator times out user123 via chat by doing /timeout user123 600. They later decide to shave two minutes off the timeout, but we are forced to guess what the new number would be. Instead, perhaps we can also have an option to do "/timeout user123 -120", to remove two minutes from their time.
Or, perhaps a mod or the streamer decides they should be timed longer, and a mod can do /timeout user123 +300 to add an additional 5 minutes to their total time.