Describe your enhancement

when viewing items in the grid it would be nice to be able to tell at a glance if the item is in external storage, internal storage, or both.

i use an external storage system to manage items of a relatively large quantity. as i get into my end-game i usually have a lot of items in external storage. this leads to running around a lot in order to determine whether something needs to be extracted to external storage.

ie: i can't remember all of the items i have in external storage therefore the more the play-through progresses it becomes increasingly difficult to manage.

perhaps a tiny icon in the top-right of each item as you view it in the grid? plus a button to make it toggle-able? sorting by quantity and also being able to see at a glance if it is internal/external/both would be amazing.

also: perhaps the display button could also cycle through "internal", "external", "both" and help filter the items needing attention?

needless to say: great mod, and thank you for all the hard work.

No, I don't think that's a meaningful distinction.
In RS2, you will be able to create subnetworks so you can more easily segment external vs internal storages yourself.