Tvheadend

Hello,
i live in Italy but i like watch tv from Switzerland.
I receive a signal from "network" SRG SSR (La1 - La2).
The frequency is 762000000 and the "transportstreamid" is 2.
The problem:
i also have a "transportstreamid" 2 , it's Rai, and the frequency is 546000000.

Tvheadend doesn't find service on SGR SSR because "transportstreamid" 2 is already in use...in fact if i delete RAI, tvheadend find service on SGR SSR BUT not in RAI.
Only the first frequency i save in tvheadend works, if the "transportstreamid" is the same...the second doesn't works...
all others frequency in italy have different "transportstreamid".

I try to modify (with tvheadend closed and stopped or killed):
.hts/tvheadend/dvbmuxes/_dev_dvb_adapter0_DiBcom_7000PC/_dev_dvb_adapter0_DiBcom_7000PC762000000
with "transportstreamid": 9 (for example....i use a transportstreamid not in use by other broadcaster); but when i run tvheadend, the transportstreamid is always 2.

I also try to delete SGR SSR form tvheadend webinterface, kill or close program, create file
.hts/tvheadend/dvbmuxes/_dev_dvb_adapter0_DiBcom_7000PC/_dev_dvb_adapter0_DiBcom_7000PC762000000
with: {
"quality": 100,
"enabled": 1,
"status": "OK",
"transportstreamid": 9,
"network": "SRG SSR I 01",
"frequency": 762000000,
"bandwidth": "8MHz",
"constellation": "AUTO",
"transmission_mode": "AUTO",
"guard_interval": "AUTO",
"hierarchy": "AUTO",
"fec_hi": "AUTO",
"fec_lo": "AUTO"
}

and restart tvheadend.
Tvheadend doesn't see the mux and i don't see the mux in webinterface
configuration - tv adapter - multiplexes

How can i resolve this problem?
If i buy another dvb-t adapter (only for SGR SSR), i'll resolve this problem?
Or is there a free solution (without buy another dvb-t adapter) using software?
I use "tvheadend 2.12 pulse 6" with "eden xbmcbuntu - pvr"

Thanks in advance, and sorry for my english.

EDIT: SOLVED!!!!!!!!!!!!!!
i solved by modify file (with tvheadend closed and stopped or killed):
.hts/tvheadend/dvbmuxes/_dev_dvb_adapter0_DiBcom_7000PC/_dev_dvb_adapter0_DiBcom_7000PC762000000
with "transportstreamid": 9 (for example....i use a transportstreamid not in use by other broadcaster)
directly from xbmcbuntu terminal and it works!!

[Before i tried to modify file with this method:
copy in my pc - modify - copy on xbmcbuntu (both copy via samba)
but file permission wasn't the same.]