If you create a stand of trees, you can easily randomize species distribution using Rule Styles. This is a very nice feature of Infraworks. Thank you, Autodesk.
The problem arises when you change the density of the trees by using the slider. Infraworks resets the style for all the trees in the stand to the same as the one selected first. Your rule style is ignored. This means you have to set the Manual Style to None, again, and re-add any tags you had previously applied.
I would prefer that the stand of trees remember the rule style I have applied and would remember the tags as well.
Tim