When working with multiple environments it would be nice to be able to collapse the list to only show the environments currently being worked with.

Similar for stacks and images & sources, pipelines, it would be good to be able to categorise these some way. When running multiple projects where not all the stacks, images are relevant to each project it would be good to have a way to show only what your interested in. I suppose tagging could be one way to achieve this if we can add and filter on tags for these resources.