I have this… But it is buggy. See if you scroll. If you change a glyph the factory doest work, only after scrolling/clicking on the overview.. Here I need a bit help :)

 
from vanilla import *
from defconAppKit.controls.glyphCollectionView import *
from defconAppKit.windows.baseWindow import BaseWindowController
from mojo.UI import SetCurrentGlyphByName

class MyFont(BaseWindowController):
	def __init__(self, glyphs):
		self.w = Window((900,600), "")
		self.w.collectionView = GlyphCollectionView((15, 15, -15, -65), doubleClickCallback=self.double, cellRepresentationName='doodle.GlyphCell')
		self.w.collectionView.setCellSize((100, 100))
		self.setUpBaseWindowBehavior()
		
		self.w.collectionView.preloadGlyphCellImages()
		self.w.collectionView.set(glyphs)
		self.updateTitle()
		self.w.open()
		
	def updateTitle(self):
		title = f.info.familyName +" - "+ f.info.styleName+",  "+ str(CurrentGlyph())
		self.w.setTitle(title)
		
	def double(self, sender):
		order = f.lib.get('public.glyphOrder')
		SetCurrentGlyphByName(order[self.w.collectionView.getSelection()[0]])
		self.updateTitle()

f = CurrentFont()
g = CurrentGlyph()
glyphs = []
for g in f.lib.get('public.glyphOrder'):
	glyphs.append(f[g])

MyFont(glyphs)