Give us the option to add values with customizable intervals and scales. For example: to make a tachometer (rpm Guage), have the interval as 1 for every 15 degrees on one of the smaller guage faces, and have the scale to be 1000 rpms. I think gauges are a really cool addition to the game, but not very practical in some instances if there is no specific value to be taken from the readings.
Good job on what you have made