Related to #321 but as a follow-on:
Adding N inventory modules to an inflatable part does indeed work now, however using just

MODULE
{
    name = ModuleKISInventory
    invType = Pod
}

produces unusable inventories: capacity is 1L and they have far too many slots. Adding the options from EvaInventory to the config file would work, until the main KIS cfg has been updated.
As pod inventories probably should always reflect EVA inventories, the settings for the inflatable pod inventories should be force-set to those of EVA inventories.