NNMI 9.10 custom incident attributes

Hi all,

I am new to NNMI 9.10 i wanted to know how to add custom incident attributes for particular incident like for node down incident in nnmi 9.10 If so i wanted add custom attribute has to get device description i.e if i get the node down incident i should get in custom incident attibutes like device details like if it is router or switch

Pls do give me some ideas???? very urgent