Hi, I'm trying to merge two columns that have attachments. 

I have 1 column that includes the attachments where the user is the primary contact (1- Attachments- Purple Due in one week), and another one where he/she is the secondary contact(2- Attachments- Purple - Due in One Week). I need to merge those columns to create a "total attachments" column for users.

The attachments are "white" because are just white pages of word (for now).

I tried to use ArrayJoin, Concatenate and also &, but the result is the same.

How can I solve this problem?? Thank you very much!