SUPRESS NEW COMPONENTS NOT WORKING

Solidworks 2014. Am I doing something wrong here? Working with derived configurations. If i right click config and check "suppress new components" Should this not suppress the part i add when in one configuration in all the other configurations not derived from the one i added the part to? Or at the least suppress it in EVERY other configuration whether it is derived or not? This seems to work the way i want it to half of the time. Its very sporadic and frustrating.

for example the end result im looking for is to have this: If im in the top level config (at2072) and add a part it will show up in all of its derived configs. However if i add a part to (With man HT) it should only show up in this configuration and it's derived config (with skids (man)).

SolidworksAssemblies