How do I add Specific Concentration Limits (SCL’s ) to raw materials for Skin Corrosion / Irritation?

Using the example of Acetic Acid CAS 64-19-7, this has SCLs as follows:
C ? 90% Skin Corr. 1A; H314 / 25% ? C < 90% Skin Corr. 1B; H314 / 10% ? C < 25 % Skin Irrit. 2; H315 / 10% ? C < 25% Eye Irrit. 2; H319

SCL for Skin corrosion categories ares entered onto Formpak in the GHS Hazards property group on the property: SCI 1A= (note SCI 1A = and not SCI 1A), and SCI 1B= as follows:
SCI 1A= 90%

SCI 1B= 25%
SCI 2= 10%
When you add the SCL’s of 90%, 25% and 10%, the TFV is calculated for you.

However, because there are related hazards that are not assigned a Specific Concentration Limit, values must be added for these otherwise the more severe hazards will be triggered at a dosage lower than the Specific Concentration Limit for the lesser hazards, when the General Concentration Limit applies, which is not the intention.
SCI 1C= 25% (This is the same value as SCI 1B, which will take precedence)
EDI 1= 25%