Re: Adding IP address range in single object in NSM
Unfortunately, that's not possible (at least not directly from within NSM). The reason is probably because none of Juniper's firewall products support address-range objects. You can only add single address objects or network objects. So the easiest would be to combine those 10 addresses into a small subnet, if possible. Then you would only need one object.
NSM can be scripted though. I have no experience with this, but it should be possible to script bulk operations and add many objects at once this way.
By the way, Junos Space, the new management product, does actually support adress-range objects if I am not mistaken. I think I saw that mentioned in the documentation.