Currently, toolbars only unfold downwards when you click the arrow icon. This works fine, but most of Factorio's UI that you interact with is at the bottom of your screen. This leads to situations like this (https://imgur.com/a/kAdUzWq), where I have a toolbar in the bottom of my screen, but when I fold it, it just awkwardly floats there. So, it leaves me stuck between having to move a toolbar every time I want to use it or fold it, or deal with small bars awkwardly hanging around the screen.
Having the option for them to unfold/expand upwards instead of downwards would remedy this. Alternately, you could have toolbar groups, where a set of toolbars is only active while that group is selected. The advantage of this approach instead would be that it is friendlier for multi-surface gameplay (since you don't need stuff like asteroid collectors on Nauvis, for instance).
Either way, thanks for the great mod! It's saved me much heartache in deciding what actually goes on my quickbar.
