Army Builder 3.3 does not include an inventory manager; there are some major issues with adding full-blown inventory management.
For the hardcore player, we would need to track everything at the SKU level, down to the individual model. Then we would have to map each model to the (many) specifically equipped units that it could be fielded within. This is a detail that the data file authors would need to adjudicate and maintain, which would add a *lot* of work to their plate.
More than likely, the classifications made by authors would become a source of disagreement due to the subjective nature of how some models can be classified in some games (e.g. 40K). At that point, we'd have to provide a complex interface that allows users to override the default classifications with their own preferences. Now the simplicity of using AB disappears.
Then there is the question of how to handle conversions, for which there are no SKUs. However, the player is absolutely going to want to track those models within his inventory.
Now look at the casual players. For the casual player, lots of models can readily fill in for other models. While they generally strive to be WYSIWYG, there is a fair amount of "fudging" that goes on. And that's perfectly reasonable for their play needs. One model could potentially be valid for use in multiple different unit types for a casual player, but a hardcore player might limit it to only a single unit because of its paint scheme.
The complexity of having something that works appropriately for all these different player needs is staggering. Not only would it be lots of work to implement, it would also make the product very complex to *use*. At that point, inventory management would only be truly useful to a very small subset of our users. Until we can figure out a way to handle all of the above competing requirements with a simple interface that makes it readily accessible to that vast majority of our users, a "complete" inventory mechanism just isn't practical. So we're still working out how best to solve this issue.
Sorry I can't give you better news
