Hi,
In general I would say you can do it as I wrote in this post. This is still valid:
But you have seen this probably before.
I guess you want to highlight also the toolboxes. But which ones? All? I think this would be too much for a single citation. Better cite each toolbox you have used separately.
This is also mentioned in our FAQ Collection (work in progress)
https://senbox.atlassian.net/wiki/spaces/SNAP/pages/321126402/Collection+of+FAQs#How-should-I-cite-SNAP?