John,
Most likely 411 is already built as an SPN in LD 90. If you want 511 to go out the same trunks and be accessible by the same people, print out 411 and copy its programming.
Code:
MEM AVAIL: (U/P): 1252955 USED U P: 68831 54469 TOT: 1376255
DISK RECS AVAIL: 424
REQ prt
CUST 0
FEAT net
TRAN ac1
TYPE spn
SPN 411
SPN 411
FLEN 0
INPL NO
RLI 1
SDRR NONE
ITEI NONE
MEM AVAIL: (U/P): 1252955 USED U P: 68831 54469 TOT: 1376255
DISK RECS AVAIL: 424
REQ new
CUST 0
FEAT net
TRAN ac1
TYPE spn
SPN 511
FLEN 0
RLI 1
SDRR
ITEI
SPN
MEM AVAIL: (U/P): 1252955 USED U P: 68831 54469 TOT: 1376255
DISK RECS AVAIL: 424
REQ
Arch