Problem saving to an existing collection!

[SkinnyT]

Can someone walk me through saving a recently discovered system to a collection I previously created named "ESXi Hosts".  On discovery, the systems are going to the "All Systems" collection.  If I go into "All Systems" and select the systems I want moved, the "Save Collection As" button becomes available.  From here I have to create a new collection and then place it in the existing collection mentioned earlier (ESXi Hosts).  This only creates a sub collection and that's not what I want to do everytime I need to save a system to a pre existing collection.  I hope this makes sense.  I've added an image if it helps.