listen() function on NeoSWSerial not working

[elklaaso]

Hi,
Using tinygpsplus + sim800, both on NeoSWSerial i can switch serial ports using the NeowSWSerial.listen() function. I realize i will miss (gsm) data because of this but it does not matter to me. It works with those 2 libraries, but i cant get it to work with NeoGPS.
The NeoGPS library is a bit to complex for me to fully understand, can you tell me if it's possible to make a change somewhere to support multiple software based serial ports at once (risking data loss) ?

regards,
Klaas-Jan Winkel