When adding a button or button bar to a layout selecting the option of single step, typing cl to get a "close" option the type ahead usually comes up with Insert Calculated Result.
To demonstrate this in FileMaker Pro Advanced 16 on OS X 10.12.5 do the following:
In layout mode:
- Add a new button
- Under Action: Select "Single Step"
- type cl The option that appears is "Insert Calculated Result"
Backspacing and typing "cl" again provides the correct list of:
Using the Windows version typing cl produces the correct list.