This is a client-side mod that allows you to equip an item from your backpack slot by pressing a key on the keyboard.
Its only works if the English keyboard layout is active.
Requires Lua with C#.
By default, the mod uses the ~ key. You can change it by changing line 50 in eksBSHS.cs file.
More specifically, you need to change the "OemTilde" dictionary key to some other you want. You can find a list of keys on this page: https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.keys?view=windowsdesktop-8.0