Legend:
= : Track
S : Station
P : Pre-Signal
E : Exit-Signal
C : Combo
1 : The New signal i'd need. < PRE > EXIT
2 : The New signal i'd need. < EXIT > PRE
< > : The direction of light (if none, then to both sides)
| : Connected somewhere down or up and so on...
. : blanks to fill the space
............|2=SSSSSSS=1|...........
............|2=SSSSSSS=1|...........
===E>=2=SSSSSSS=1=P>===
===<P=2=SSSSSSS=1=<E===
............|2=SSSSSSS=1|...........
............|2=SSSSSSS=1|...........
What this would solve is that when i use those kinds of 2 way tracks, the trains woudn't go waiting in the station platform selection tracks if the track they are going to is blocked, as this causes major slowdowns especially in case of breakdowns. Combo-signals do this when it's an end-station, without the other side, but not in these kind of "Fly through" stations.
Crossing my fingers that atleast one persion knows what i'm talking about


Edit: Decided to go and take this pic, the "1's" and "2's" are just normal dualsigns here: