Anchors Palette
This plugin enables a panel which shows the anchor position in the selected glyphs so you can check for example if some anchors are on the same height. You can also adjust its position.
By Tim Ahrens
Show Next Font Anchors
This plugin compared anchors used in two different fonts. Shows in light orange the anchors used in the glyph of the next font and in gray the current font anchors. If names and quantity matches it will show a “Ok” message in green.