Nexus Mods plans for this feature to be available for all users, although premium users will essentially have 'one-click installation' while free users will have to 'click and open the download page for every mod in a collection they want to download manually.'
This list or 'collection' could then be added to Vortex, allowing the mod manager to automatically retrieve, download and install the mods on the list. Instead of requiring users to individually manage load orders and resolve file conflicts between mods, someone could 'build a mod list/mod setup locally on their machine, then export a meta file with all the information about the mods/files/conflict resolution etc.
The new collections system is a feature Nexus Mods has been working on for some time, and is intended to make mod installation easier for the average user.
