Create Drag & Drop Plans using Adobe InDesign or similar

We are creating written plans for our customers in which we present strategies consisting of different parts (e.g. Part 1 - financial advise, Part 2 - business consulting, ...). In order for us to create these plans quicker and more efficiently we need to have a system in place that allows us to easily drag and drop pre-written sections into these plans (or hide certain sections that are not relevant to some customers). Apart from that, there should also be some parts that can be adjusted/added manually in each plan. While I don't have much experience on how to create things like this, I heard that Adobe InDesign might be an option to do this, but we are open to suggestions.