Can I create a configurable bundle with any 2 products from a collection? Meaning the user can get a discount if he buys any combination of products and I only create 1 bundle.
Bundler is meant to create bundle with specific products, meaning you can't create a bundle by targeting all products in a collection. In Bundler, you have to specify exactly which products you want to have in a bundle.
However, we are planning on adding this functionality in the future.