Convert arrow functions to ASWD keys in the glyphView. If you have shortcuts already set up for any of these keys you will run into issues!

WASD.py

from vanilla import FloatingWindow
from mojo.events import addObserver, extractNSEvent

class WASDTool:

    def __init__(self):
        addObserver(self, "keyWasPressed", "keyDown")

    def keyWasPressed(self, info):
        glyph = info["glyph"]
        if glyph:

            event = info["event"]
            characters = event.characters()
            shiftDown = extractNSEvent(info)['shiftDown']
            commandDown = extractNSEvent(info)['commandDown']
            
            x = 1
            if shiftDown:
                x = 5
                if commandDown:
                    x = 100
                    
            KEYMAPPING = {
                "w":(0,x),
                "a":(-x,0),
                "s":(0,-x),
                "d":(x,0),
            }

            objects = []
            objects.extend(glyph.selectedBPoints)
            objects.extend([p for p in glyph.selectedPoints if p.type == "offcurve"])
            objects.extend(glyph.selectedComponents)
            objects.extend(glyph.selectedAnchors)
            
            if objects != []:
                # convert to lowercase so we dont have to use a huge dict
                if characters.lower() in KEYMAPPING.keys():
                    move = KEYMAPPING[characters.lower()]
                    if move:
                        glyph.prepareUndo("movePoints")
                        for obj in objects:
                            obj.moveBy(move)
                        
                        glyph.changed()    
                        glyph.performUndo()

WASDTool()