We have a retail shop attached to our warehouse and we want to be able to find a way to split the stock so we can have a certain amount online across our platforms and a set amount reserved for the actual shop itself.
Alas, no. One of my biggest frustrations is that website stock in Neto is always the sum across all your warehouses. As much as they call themselves an omnichannel solution, that's just marketing spin. Neto has many shortcomings if you operate retail locations as well.
There are hacks you can do to the front-end to try and only show a product as in-stock based on a specific warehouse location but you'll need a developer, it's extremely complex to implement correctly, and it can never work perfectly. I've been working on implementing it on our site for years.