Staad - cover not accurately reflected in output?

I'm designing a concrete slab in STAAD. AT the end of the file, I have the following and would like to define the cover as 2.6": 

START CONCRETE DESIGN
CODE ACI 2011
UNIT INCHES KIP
FYMAIN 60 ALL
FC 4.5 ALL
DESIGN ELEMENT ALL
CLB 2.6 ALL
CLT 2.6 ALL
END CONCRETE DESIGN
PRINT SUPPORT REACTION
FINISH

The output gives a cover of 0.75" which is not was defined in the input, the following is an example: 

ACI 318-11 ELEMENT DESIGN SUMMARY
=====================================

ELEMENT LONG. REINF MOM-X /LOAD TRANS. REINF MOM-Y /LOAD
(SQ.IN/FT) (K-FT/FT) (SQ.IN/FT) (K-FT/FT)

FY: 60.000 KSI FC: 4.500 KSI COVER (TOP): 0.750 IN
COVER (BOTTOM): 0.750 IN TH: 6.000 IN
2 TOP : Longitudinal direction - Only minimum steel required.
2 BOTT: Longitudinal direction - Only minimum steel required.
2 TOP : Transverse direction - Only minimum steel required.
2 BOTT: Transverse direction - Only minimum steel required.
2 TOP : 0.065 0.00 / 0 0.065 0.00 / 0
BOTT: 0.065 0.07 / 4 0.065 0.06 / 4

How do I get the cover accurately considered in the output?