Hey @ABp and @GJ_Roelofs, it’s true that Coda doesn’t have editable bi-directional lookups yet, but we do have easy adding of bi-directional lookup columns without having to type formulas. Here’s a quick GIF of that in action: https://cl.ly/b2cdb21a43af/Screen%20Recording%202020-01-13%20at%2003.12%20PM.gif
The column won’t add to table Lookup B automatically when you insert the lookup column in table Lookup A, but you can do it yourself with only two clicks.