On page 731 of the STAAD.Pro Technical Reference Manual, the code checking command is listed as "CODE CHECK _GROUPNAME".
Attempting to run this command will result in a syntax error.
On the STAAD Wiki the correct code checking command is listed as "CHECK CODE MEMB _TEST"
Running this command will result in a successful check.
Thanks,
Thanks for pointing out the issue. We will fix this in future updates.