Subject RE: [IBO] checkbox in the grid
Author Jason Wharton
> how to make ib_grid to show true checkbox component for boolean
> columns?
> if column attribute set to BOOLEAN=Y,N; grid shows a tick if true and
> an empty place if false.
> want to have column, where user could check/uncheck value.

Go into edit state and if the column is modifiable it should appear.

I don't remember all the fine details on this. Perhaps a peek in the code
will reveal what you need to know more.