How to add nodes on jumplist

Hi,

Herewith I have attached 2 screenshots.

First one is our main page,in that right side jumplists are there,I have created DC600 under distrubution centers but i am unable to add nodes under group members see the second attachment.

I have checked with solarwinds support but they didnt provide the solutin nad suggested go to thwack community.

Please let me now how to add nodes under group members.

For reference i have attached DC198 nodes. 3rd attachment