Sure, I can add those. For what it's worth. at least with train limits, the current default is actually 3, unlike vanilla stops that have no limit by default. Probably a default of 1 or 2 would make more sense (with an option in mod settings to set a custom default). I just picked 3 since that's what I generally use.
Edit: actually, there seems to be a bug with limits, the current default is meant to be 10 (the maximum), but it's not getting set correctly...