Resource inventory expansion

[Slaugas]

I noticed that the resource inventory tab has an empty slot for bag like the one which expands an ordinary inventory. But when I tried to put a bag in that slot it did not work. Do I need some special type of bag to expand resource inventory, or this is a glitch and that slot can't be used at all? Is there any other way to expand resource inventory?

[Roddam]

I noticed that the resource inventory tab has an empty slot for bag like the one which expands an ordinary inventory. But when I tried to put a bag in that slot it did not work. Do I need some special type of bag to expand resource inventory, or this is a glitch and that slot can't be used at all? Is there any other way to expand resource inventory?

There is no way to expand resource or quest inventory at this time.