Using SQL Management (or any other manager) is mandatory if you want to make a server (even a test one). Everything is stored on DBs.
Just go to
ps_userdata.dbo.users_master (users_detail is not needed), and add a new row (manually), try to understand what every value means there. Copy the values from the GM account.
Just remember:
Code:
UserUID: must be unique (cant have duplicated values). In some releases this field is autonumeric, but sometimes you have to put the number there.
Admin: 1=GM / 0=normal player
AdminLevel: 0=normal player / other values=GM
Status: 0=normal player / other values=GM
UserType: A=GM / N=normal player
The other fields, you can copy values from the GM account.
Search the PROFNERWOSOL "Guide to Shaiya Configuration" here on the forums.