Project Quarm - 1 Box Planes of Power

[Malk]

Options->Keys->category:Commands->Open Inventory Bags (and Close Inventory Bags)

You can bind "Toggle inventory window" to the same key to open all the bags and the inventory at the same time, however since one is a toggle and not the other you'll need either a modifier key or a different key to close everything.

For example "i" to open all bags+inventory, and "shift-i" to close everything.