I was looking in the function/commands area and it looks like msgbox()
allows you to specify what buttons will show and some other options...
msgbox(strMyMessage, intMyStyle, strMyHeading)

However when I try to display a message with Yes/No buttons, I get an error.

msgbox("This is a test. Do you want to see another test?", 4, "Test of msgbox buttons and heading")

TIA,
Rick