Userform with Excel 2018 for MacOS

Question

I saw that functionality of adding userform into Excel 2018 for MacOS (or since Excel 2016) was not possible unlike with Excel 2011 : when I say "adding userform", I am talking about the "UI" designer which allows to design the buttons, boxes, lists, ... (Actually it seems that adding userform is only available on Windows version of Excel 2018).

I am a beginner in VBA scripting even if I have basics of programming in others languages.

Could anyone give me a simple example or a tutorial link how to build a simple userform with Excel 2018 for MacOS ?

If the "UI" designer is not available, can I directly code the userform with only a VBA code source ( can the design be directly coded ?)

Thanks for your help, regards