The User guide can be found here:
One ammendment we are rolling out is the change to the “Double Eye” (shown LEFT in picture).
We have now made these into a “Quad” plate for up to 4-elements.
There is absolutely NO difference to you, however for experimenters wishing to explore say loaded 3/4 wave elements on 10m / 12m (as a psuedo 5/8th element) or Inverted L for both 80 AND 60m(?) this little device will come in handy and save you making something up.
User guide will be changed soon to reflect.
If this confuses you, just ignore the two holes perpendicular to the ones you want to useand consider that it is a “Double Eye”.