How to open a plain TeX document in BaKoMaTeX (TeXword)

The question says it all

I want to open a plain Tex equation in BaKoMaTeX (TeXWord)

This is a Sample File

$$t{\rm{(}}x{\rm{,}}y{\rm{)}} = \left\{ {\matrix{ 1 \cr 0 \cr } } \right.\matrix{ {\quad \quad \quad \quad {\rm{when}}\;\sqrt {(x^2 + y^2 )} \le r} \cr {{\rm{otherwise}}} \cr }$$

• BaKoMaTeX is a LaTeX editor, not a general TeX one. I'm not sure you can edit plain TeX files in BaKoMa, given the fact it's aiming at something more than just being a text editor with dedicated TeX features. – Joseph Wright Oct 29 '14 at 10:20
• @JosephWright, Actually my question is can we open a Plain tex File in Bakoma Tex and Edit Visually like we do for Latex Files?? – user52124 Oct 29 '14 at 10:22
• I don't know about BakoMaTeX, but I'd like to comment on your equation; are you perhaps trying to get something like: $$t(x,y) = \cases{1 & when \sqrt{(x^2 + y^2)} \le r \cr 0 & otherwise}$$ – morbusg Oct 29 '14 at 10:24
• @morbusg, whatever equation doesn't matters for me, i will be getting equations in Plain Tex Format, i want to open it in BakoMa Texword for Editing(WYSIWYG) purpose – user52124 Oct 29 '14 at 10:27
• @user52124 As I've already said, BaKoMa is explicitly a LaTeX-focussed system, and as it's more than just a text editor it's very hard to imagine it will work with plain. However, you'll find very few people here with experience with BaKoMa, and may well be best asking the technical support for what is a commercial application. – Joseph Wright Oct 29 '14 at 10:28