Applies for: iPublisher
Where: Creator
To make it easier for you as a user, we have a function under section 2 for calculating acute toxicity.
As a product creator, you can indicate that 10% or more of your unknown substances (not added substances in section 3) are not classified for acute toxicity.
This way you avoid an incorrect classification of the product.
Click for source: CLP
Located under section #2 there is a button in the upper right which lets you view additional options for your product.

By enabling this option the user is confirming that the remaining "unknown" substances are non-toxic (e.g.: water solutions).
With this information automatic calculation will use a formula when all substances have known toxicity instead.