I was digging in the abandoned section of the wiki and I found a set of Nethack style keybindings, can you still bind to the F-keys?
Here are those bindings for reference
[Keybindings]
Quit = "Q";
WalkWest = "4"; // orig. "LEFT"
WalkEast = "6"; // orig. "RIGHT"
WalkNorth = "8"; // orig. "UP"
WalkSouth = "2"; // orig. "DOWN"
WalkNE = "9"; // orig. "PAGEUP"
WalkSE = "3"; // orig. "PAGEDOWN"
WalkNW = "7"; // orig. "HOME"
WalkSW = "1"; // orig. "END"
Wait = ".";
Escape = "ESCAPE";
OK = "ENTER";
MoreInfo = "m";
Enter = ">";
Unload = "u"; // orig. "U"
Pickup = ","; // orig. "g"
Drop = "d";
Inventory = "i";
Equipment = "e";
Open = "o";
Close = "c";
Look = "/"; // orig. "l"
Fire = "f";
Reload = "r";
ReloadSpec= "R";
Use = "a"; // orig. "u"
Help = "?";
Playerinfo= "@";
Save = "S";
Tactic = "TAB";
RunMode = "5"; // orig. ","
QK_Chainsaw = "F1"; // orig. "0"
QK_Knife = "F2"; // orig. "1"
QK_Pistol = "F3"; // orig. "2"
QK_Shotgun = "F4"; // orig. "3"
QK_AssaultSG = "F5"; // orig. "4"
QK_DoubleSG = "F6"; // orig. "5"
QK_Chaingun = "F7"; // orig. "6"
QK_Rocket = "F8"; // orig. "7"
QK_Plasma = "F9"; // orig. "8"
QK_BFG9000 = "F10"; // orig. "9"