Bundly • Mix & Match Bundles

Installed then promptly uninstalled this app, which I wanted to like. There are two types of bundles you can build: fixed and dynamic (mix and match). Dynamic bundles are built from existing collections you have in your shop, which is a definite time-saver once you know that and can build collections around it. However, there's no option to edit the bundles once you start them - just the option to add more collections and to change the headings of each collection section. And customers can only select one item per collection, with no option to edit. I need more customisation than that.