@Dmitry
I know that OS name is "macOS".
but I suggest component name with caps M, TMacOSFormProp. or better TMacFormProp.
reason: new component name "macOSFormProp1" with lowercase m is not nice.
TMacFormProp reads nicer that TMacOSFormProp, "OS" no need, all get idea that it's macOS.
Regards,
Alexey
