Feature request - random number of opponents (but not quite)

I like the random number of opponents feature, especially on large maps where it can be a long while before you discover everybody you're up against. But having it purely random at the moment means you can often waste a few hours playing a game that turns out to be just you and one other race. It'd be good to be able to choose random, but with limits. For example, random but at least 3, or between 5 and 8.