Wrong description of RPL ENTER?

[Orome]

This description is incorrect, isn't it?

Quote:If you press the digit 5 on an RPL calculator the “5” is entered into level 1 of the stack. ... If you then press ENTER RPL will terminate the digit 5, and leave it on level 1 of the stack.

In fact, on RPL calculators, when you press 5, you are working on the command line, and pressing ENTER puts it on level 1 of the stack. In fact most keys behave the same: they (first) put it on the stack. Correct?