How do I type Ϛ?

Using keyboard layouts in Windows 10.0.28000.1251

Use this page to find out how to type a character on given keyboard or how many keyboards contain given characters.

The entered characters are as follows:

Hex	Dec	Name		Range	C#	HTML	URL
U+03DA	986	Ϛ	GREEK LETTER STIGMA	Greek and Coptic	\u03da	Ϛ	%CF%9A

Unfortunately, there is no keyboard layout in Windows 10.0.28000.1251 that would allow you to type all these characters.