Advanced OpenType Software Tool, like MS VOLT, can create an automatic replacement of a string of glyphs, and insert a needed glyph, such as a shva-na and a meteg.
As a results, intelligent students can better study the grammatical use and proper placement of the shva-na and the meteg.
At first. I was distracted by seemingly Hebrew experts as to the impossibility of doing this, as the use and placement of shva-na and meteg is purely grammatical, in their minds, and not at all contextual.
So, I consulted with two truly Hebrew language experts, Prof. Aron Dotan of Tel Aviv University in Ramat Aviv, Israel, and Rabbi Shmuel Rabin of Toronto, Canada, a Lubavitcher chossid. They confirmed that this indeed was possible. Rabbi Rabin warned though that this was very difficult according to the viewpoint of Rabbi Zalman Hanau.
There are basically three schools of thought based upon the writings of the Radak, Rabbi David Kimchi - the father of our understanding of Hebrew grammar. They are:
1. Rabbi Zalman Hanau and most of Jewish thinking until about 225 years ago. The Chabad Lubavitch printing house in the USA, Kehos follows this approach.
2. Rabbi Eliyahu Bachur, and later the Vilna Gaon. The ArtScroll printing house follows this approach.
3. Minchas Shai. Shai LeMorah publishers of Jerusalem, and the Chabad Lubavitch printing house in Israel, Kehos, follow this approach.