Staad writes a text file with all the parameters of the model, loads etc. which you will need to get involved with using the Staad editor.
The line length for commands in the text file is 79 characters when a line goes beyond this the remaining characters are shown in light grey (using staad editor). To incorporate a command line more the 79 characters you need to find a suitable place to split the command line and use the staad continuation character to tell the program the command continues on the next line, the character is:
-
An example of a combination load case which was too long for a single line would be:
LOAD COMB 101 IN SERVICE LOADS IN -Z NO BERTHING
1 1.154 2 0.097 3 -0.75 4 1.154 5 0.097 6 -0.75 7 1.0 15 1.0 23 1.0 27 1.0 -
42 1.0 43 1.0 46 1.0 50 1.0
Where the - on it's own is the continuation character.
If you don't edit the text file and split the line as required staad will only read part of the load command during analysis and your results will be affected.