Using DFF for Learning Item Contribution Approval

Summary

Is it possible to use an DFF created against Learning Item Additional Attributes in the Learning Item Contribution Approval?

Content

Hi everyone, 

I have set up a number of DFFs again Learning Item Additional Attributes and I would like to reference these fields in the Learning Item Contribution approval. Is this possible?

When I look in the Attributes drop down I can't find the correct tables. For example, in the Learning Assignment Withdrawal approval I can select the attribute of CaAttribute1 (another DFF I have created). But I cannot do the same in Learning Item Contribution Approval. No tables seem to be referenced.