Vertical bar trick to space opossite sidebearings

Simplified opposite side bearing syntax.
Is run correctly in the latest version of Glyphs?
The parentright is a flipped component from parentleft

No, there should be a vertical bar before the glyph name. The brown colour indicates it’s an invalid key.

Thanks! Now is right.

This feature don’t work for me with the latest cutting edge. [960]

I fixed it.