It is possible to change the name of the instance but not the underlying URL.
You can change the name of the instance in the NavVis Cloud Manager.
To change the URL you need to setup a new instance and the old one can be deleted after backing up all the data you still need (Bundles, POIs).
Bundles, specifically referred to as Alignment Bundles in NavVis IVION, are collections of related datasets that have been grouped together after being aligned. The primary purpose of creating an alignment bundle is to save the relative locations of these datasets to each other, enabling coordinated management and use within the system