GLR under elevated rail

[z]

Currently, there is a GLR under elevated rail puzzle piece, which is very helpful.  However, it works only with straight elevated rail; there are no diagonal pieces.  Originally, I thought, "Well, OK, I'll just create a section of draggable GLR and then drag a diagonal el rail over it."  Unfortunately, when I did that, the el rail turned into draggable GLR!  The only way I could find to get a diagonal el line over a GLR line was to temporarily route the GLR into a subway, and then have the el line go over bare ground.  Ugh!

The same applies, of course, to el rail over GLR-in-avenue.  In this case, puzzle pieces with both straight and diagonal el rail would be useful.  And since we're talking diagonals and GLR-in-avenue, I'll once again mention my request for a puzzle piece with a diagonal road crossing of GLR-in-avenue.  I understand the two-network limitation that limits the type of GLR-in-avenue puzzle pieces, but none of these requests use networks other than the two already present in GLR-in-avenue, so I would assume they're doable.