Absolutely. There is no restriction on how you display your inventories. You just need to reference an inventory component (drag and drop the inventory component in the inspector) in the Inventory Grid UI component which can be set in any canvas.
To display things exactly like you wish may require some custom code but nothing complicated. We can guide you in the forums if you end up having issues.
If you wanted you could even display your items in the chests as 3D/2D game objects. That would require a fair bit more of custom code but it may suit your use case better.
I hope that answers your concerns
Thank you Kindly,
That is so awesome, I had about an hour spare to myself, just be looking into previous post, your Inventory System is amazing, has more other features that go beyond a normal Inventory System, and now your telling me I can make my on render for the System, however I like, that is like icing on a cake!
This asset will becoming available soon? Selling on the opsive website or unity store?